QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2012

OR

¨

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

001-14223

Commission File
Number

KNIGHT CAPITAL GROUP, INC.

(Exact name of registrant as specified in its charter)

DELAWARE

(State or other jurisdiction of incorporation or organization)

22-3689303

(I.R.S. Employer
Identification Number)

545 Washington Boulevard, Jersey City, NJ 07310

(Address of principal executive offices and zip code)

Registrants telephone number, including area code: (201) 222-9400

Indicate by check mark
whether the registrant (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file
such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data
File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such
files). Yes x No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definitions of large accelerated filer,
accelerated filer and smaller reporting company in Rule 12b-2 of the Exchange Act.

Knight Capital Group, Inc. (collectively with its subsidiaries, Knight or the Company) is a global
financial services firm that provides access to the capital markets across multiple asset classes to a broad network of clients, including broker-dealers, institutions and corporations. The Company seeks to continually apply its expertise and
innovation to the market making and trading process to build lasting client relationships through consistent performance and superior client service. The Company has four operating segments: (i) Market Making, (ii) Institutional Sales and
Trading, (iii) Electronic Execution Services and (iv) Corporate and Other.

Market Making

The Market Making segment principally consists of market making in global equities and listed domestic options. As a market maker, the Company
commits capital for trade executions by offering to buy securities from, or sell securities to, institutions and broker-dealers. The Market Making segment primarily includes client, and to a lesser extent, non-client electronic market making
activities in which the Company operates as a market maker in equity securities quoted and traded on the Nasdaq Stock Market; the over-the-counter (OTC) market for New York Stock Exchange (NYSE), NYSE Amex Equities
(NYSE Amex), NYSE Arca listed securities; and several European exchanges. As a complement to electronic market making, the Companys cash trading business handles specialized orders and also transacts on the OTC Bulletin Board, the
OTC Pink Markets and the Alternative Investment Market (AIM) of the London Stock Exchange. The segment provides trade executions as an equities Designated Market Maker (DMM) on the NYSE and NYSE Amex. The Market Making
segment also includes the Companys option market making business which trades on substantially all domestic electronic exchanges.

Institutional Sales and Trading

The
Institutional Sales and Trading segment includes global equity, exchange traded funds (ETFs), and fixed income sales; reverse mortgage origination and securitization; capital markets; and asset management activities. The primary business
of the Institutional Sales and Trading segment is to execute and facilitate equities, ETFs and fixed income transactions as an agent on behalf of institutional clients, and commits capital on behalf of clients when needed. This is predominantly a
full-service execution business, in which much of the interaction is based on the Companys client relationships. This segment also facilitates client orders through program and block trades and riskless principal trades and provides capital
markets services, including equity and debt private placement.

Electronic Execution Services

The Electronic Execution Services segment offers access via its electronic agency-based platforms to markets and self-directed trading in equities,
options, fixed income, foreign exchange and futures. In contrast to Market Making, the businesses within this segment generally do not act as a principal to transactions that are executed and generally earn commissions for acting as an agent between
the principals to the trade.

The Corporate and Other segment invests in strategic financial services-oriented opportunities, allocates, deploys and monitors all capital, and maintains corporate overhead expenses and all other income and
expenses that are not attributable to the other segments. The Corporate and Other segment houses functions that support the Companys other segments such as self-clearing services, including stock lending activities.

Discontinued Operations

Discontinued
operations comprises costs associated with shutting down the Companys former Deephaven Capital Management business which was discontinued in 2009.

2.

Significant Accounting Policies

Basis of consolidation and form of presentation

The accompanying unaudited Consolidated Financial Statements, prepared in conformity with accounting principles generally accepted in the United States of America (GAAP), should be read in conjunction
with the audited Consolidated Financial Statements included in the Companys Annual Report on Form 10-K for the year ended December 31, 2011. These unaudited Consolidated Financial Statements reflect all adjustments that are, in the
opinion of management, necessary for a fair statement of the results for the interim periods presented. All such adjustments are of a normal recurring nature. Certain footnote disclosures normally included in financial statements prepared in
accordance with GAAP have been condensed or omitted pursuant to U.S. Securities and Exchange Commission (SEC) rules and regulations, although the Company believes that the disclosures herein are adequate to make the information presented
not misleading. All significant intercompany transactions and balances have been eliminated. Interim period operating results may not be indicative of the operating results for a full year.

Certain reclassifications have been made to the prior periods Consolidated Financial Statements in order to conform to the current year
presentation. Such reclassifications had no effect on previously reported Net income.

The Company consolidates all of its wholly-owned
subsidiaries as well as any investment in which it is considered to be the primary beneficiary of a variable interest entity (VIE). The Company performs a qualitative assessment to determine if a VIE should be consolidated. As described
in more detail below, the primary attributes the Company assesses include the entitys capital structure and power. The Company will consolidate a VIE if it has both (i) the power to direct the activities of a VIE that most significantly
impact the entitys economic performance and (ii) the obligation to absorb losses of the entity that could potentially be significant to the VIE or the right to receive benefits from the entity that could potentially be significant to the
VIE. As of March 31, 2012 and December 31, 2011, the Company was not considered to be a primary beneficiary of any VIE.

Cash and cash equivalents include money market accounts, which are payable on demand, and short-term investments with an original maturity of less
than 90 days. The carrying amount of such cash equivalents approximates their fair value due to the short-term nature of these instruments.

Market making, sales, trading and execution activities

Financial instruments owned and
Financial instruments sold, not yet purchased, which relate to market making and trading activities, include listed and OTC equity securities, listed equity options and fixed income securities which are recorded on a trade date basis and carried at
fair value. Net trading revenue (trading gains, net of trading losses) and commissions (which includes commission equivalents earned on institutional client orders and home equity conversion mortgages (HECMs) loan origination and
securitization activities) and related expenses are also recorded on a trade date basis. The Companys third party clearing agreements call for payment or receipt of interest income, net of transaction-related interest charged by clearing
brokers, for facilitating the settlement and financing of securities transactions. The Company also nets interest income on its securitized HECM loan inventory against interest expense on its liability to Government National Mortgage Association
(GNMA) trusts. Interest income and interest expense which have been netted on the Consolidated Statements of Operations are as follows (in thousands):

For the three months ended March 31,

2012

2011

Interest Income

$

31,023

$

6,602

Interest Expense

(23,885

)

(3,501

)

Interest, net

$

7,138

$

3,101

Dividend income relating to securities owned and dividend expense relating to securities sold, not yet purchased,
derived from the Companys market making activities are included as a component of Net trading revenue on the Consolidated Statements of Operations. Net trading revenue includes dividend income and expense as follows (in thousands):

For the three months ended March 31,

2012

2011

Dividend Income

$

6,960

$

4,607

Dividend Expense

$

(5,026

)

$

(4,753

)

Payments for order flow represent payments to broker-dealer clients, in the normal course of business, for
directing their order flow in U.S. equities and options to the Company. Payments for order flow also include fees paid to third party brokers with respect to wholesale loan production at the Companys reverse mortgage business.

Fair value of financial instruments

The Company values its financial instruments using a hierarchy of fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value.

Level 1  Valuations based on quoted prices in active markets for identical assets or liabilities that the Company has the ability to access. Since
valuations are based on quoted prices that are readily and regularly available in an active market, valuation of these products does not entail a significant degree of judgment.



Level 2  Valuations based on quoted prices in markets that are not active or for which all significant inputs are observable, either directly or
indirectly.



Level 3  Valuations based on inputs that are unobservable and significant to the overall fair value measurement.

Changes in fair value are recognized in earnings each period for financial instruments that are carried at fair value. See Footnote 3 Fair
Value of Financial Instruments for a description of valuation methodologies applied to the classes of financial instruments at fair value.

Securitization activities

The Company securitizes HECMs under its GNMA issuance authority.
Securitization and transfer of financial assets to a third party are generally accounted for as sales when an issuer has relinquished control over the transferred assets. Based upon the current structure of the GNMA securitization program, the
Company believes that it has not met the GAAP criteria for relinquishing control over the transferred assets and therefore its securitizations fail to meet the GAAP criteria for sale accounting. As such, the Company continues to recognize the HECMs
in Financial instruments owned, at fair value, and the Company recognizes a corresponding liability in Liability to GNMA trusts, at fair value on the Consolidated Statements of Financial Condition. The associated change in fair value of the
securitized HECM loan inventory is recorded in Commissions and fees on the Consolidated Statements of Operations.

Collateralized
agreements and financings

Collateralized agreements consist of collateralized financings which include securities borrowed and
securities loaned, financial instruments sold under agreements to repurchase, liability to GNMA trusts, at fair value and other secured financings.



Securities borrowed and securities loaned transactions are recorded at the amount of cash collateral advanced or received. Securities borrowed transactions
facilitate the securities settlement process and require the Company to deposit cash or other collateral with the lender. Securities loaned transactions help finance the Companys securities inventory whereby the Company lends stock to
counterparties in exchange for the receipt of cash or other collateral from the borrower. In these transactions, the Company receives or lends cash or other collateral in an amount generally in excess of the market value of the applicable securities
borrowed or loaned. The Company monitors the market value of securities borrowed or loaned on a daily basis, with additional collateral obtained or refunded as necessary.

Financial instruments sold under agreements to repurchase are used to finance inventories of securities and other financial instruments and are recorded at their
contractual amount. The Company has entered into bilateral and tri-party term and overnight repurchase agreements which bear interest at negotiated rates. The Company receives cash and makes delivery of financial instruments to a custodian who
monitors the market value of these instruments on a daily basis. The market value of the instruments delivered must be equal to or in excess of the principal amount loaned under the repurchase agreements plus the agreed upon margin requirement. The
custodian may request additional collateral, if appropriate.



Other secured financings represent contractual agreements used to finance financial instruments and other assets and are recorded at their contractual amount.
These agreements are short-term in nature with durations of typically less than a month and bear interest at negotiated rates. The Company receives cash and pledges financial instruments to banks and other financial institutions as collateral for
these secured financing arrangements. The market value of the collateral delivered must be in excess of the principal amount loaned plus the agreed upon margin requirement under the secured financings. The banks and other financial institutions may
request additional collateral, if appropriate.



Liability to GNMA trusts, at fair value, represents the liability associated with the Companys securitization of HECMs where the securitization does not
meet the GAAP criteria for sale treatment.

The Companys securities borrowed, securities loaned, financial
instruments sold under agreements to repurchase and other secured financings are recorded at amounts that approximate fair value. These items are recorded based upon their contractual terms and are not materially sensitive to shifts in interest
rates because they are short-term in nature and are fully collateralized. These items would be categorized as Level 2 in the fair value hierarchy if they were required to be recorded at fair value.

Investments

Investments
primarily comprise strategic investments and deferred compensation investments. Strategic investments include noncontrolling equity ownership interests and debt instruments held by the Company within its non-broker-dealer subsidiaries, primarily in
financial services-related businesses. Strategic investments are accounted for under the equity method, at cost or at fair value. The equity method of accounting is used where the Company is considered to exert significant influence on the investee.
Strategic investments are held at cost, less impairment if any, when the Company is not considered to exert significant influence on operating and financial policies of the investee. Deferred compensation investments primarily consist of mutual
funds, which are accounted for at fair value.

Strategic investments are reviewed on an ongoing basis to ensure that the carrying values
of the investments have not been impaired. If the Company determines that an impairment loss on a strategic investment has occurred due to a decline in fair value or other market conditions, the investment is written down to its estimated fair
value.

The Company maintains a non-qualified deferred compensation plan related to certain employees and directors. This plan provides
a return to the participants based upon the performance of various investments. In order to hedge its liability under this plan, the Company generally acquires the

underlying investments and holds such investments until the deferred compensation liabilities are satisfied. Changes in value of such investments are recorded in Investment income and other, net,
with a corresponding charge or credit to Employee compensation and benefits on the Consolidated Statements of Operations.

Goodwill
and intangible assets

The Company tests goodwill and intangible assets with an indefinite useful life for impairment annually or
when an event occurs or circumstances change that signifies the existence of an impairment. The Company amortizes other intangible assets on a straight line basis over their estimated useful lives and tests for recoverability whenever events
indicate that the carrying amounts may not be recoverable.

Treasury stock

The Company records its purchases of treasury stock at cost as a separate component of stockholders equity. The Company obtains treasury
stock through purchases in the open market or through privately negotiated transactions. The Company may re-issue treasury stock, at average cost, for the acquisition of new businesses or, in certain instances, as inducement grants to new hires or
grants to consultants.

Foreign currency translation and foreign currency forward contracts

The Companys European subsidiary utilizes the Pound Sterling as its functional currency while the Companys Hong Kong subsidiary
utilizes the Hong Kong dollar as its functional currency. For all other entities, the Companys functional currency is the U.S. dollar.

Assets and liabilities of foreign subsidiaries having non-U.S. dollar functional currencies are translated at exchange rates at the end of a period. Revenues and expenses are translated at average exchange
rates during the period. Gains and losses resulting from translating foreign currency financial statements into U.S. dollars are included in Accumulated other comprehensive loss on the Consolidated Statements of Financial Condition and the
Consolidated Statements of Comprehensive Income. Gains or losses resulting from foreign currency transactions are included in Investment income and other, net on the Companys Consolidated Statements of Operations. For the three months ended
March 31, 2012 and 2011, a loss of $0.2 million and a loss of $0.1 million, respectively, were recorded in Investment income and other, net on the Companys Consolidated Statements of Operations.

The Company seeks to reduce the impact of fluctuations in foreign exchange rates on its net investment in certain non-U.S. operations through the
use of foreign currency forward contracts. For foreign currency forward contracts designated as hedges, the Company assesses the risk management objectives and strategy, including identification of the hedging instrument, the hedged item and the
risk exposure and how effectiveness is to be assessed prospectively and retrospectively. The ineffectiveness of the hedge is assessed based on the overall changes in the fair value of the forward contracts. For qualifying net investment hedges, any
gains or losses, to the extent effective, are included in Accumulated other comprehensive loss on the Consolidated Statements of Financial Condition and the Consolidated Statements of Comprehensive Income. The ineffective portion, if any, is
recorded in Investment income and other, net on the Consolidated Statements of Operations.

Under a commission management program, the Company allows institutional clients to allocate a portion of their gross commissions to pay for
research and other services provided by third parties. As the Company acts as an agent in these transactions, it records such expenses on a net basis within Commissions and fees on the Consolidated Statements of Operations.

Depreciation, amortization and occupancy

Fixed assets are depreciated on a straight-line basis over their estimated useful lives of three to seven years. Leasehold improvements are being amortized on a straight-line basis over the shorter of the term of
the related office lease or the expected useful life of the assets. The Company capitalizes certain costs associated with the acquisition or development of internal-use software and amortizes the software over its estimated useful life of three
years, commencing at the time the software is placed in service. The Company reviews fixed assets and leasehold improvements for impairment whenever events or changes in circumstances indicate that the related carrying amounts may not be
recoverable.

The Company recognizes rent expense under operating leases with fixed rent escalations, lease incentives and free rent
periods on a straight-line basis over the lease term beginning on the date the Company takes possession of or controls the use of the space, including during free rent periods.

Lease loss accrual

The
Companys policy is to identify excess real estate capacity and where applicable, accrue for related future costs, net of estimated sub-lease income. In the event the Company is able to sub-lease the excess real estate after recording a lease
loss, such accrual is adjusted to the extent the actual terms of sub-leased property differ from the assumptions used in the calculation of the accrual. In the event that the Company concludes that previously determined excess real estate is needed
for the Companys use, such lease loss accrual is adjusted accordingly. Any such adjustments to previous lease loss accruals are recorded in Writedown of assets and lease loss accrual on the Consolidated Statements of Operations.

Income taxes

The Company
records deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the financial reporting and tax bases of assets and liabilities and measures them using the enacted tax rates and laws that will be
in effect when such differences are expected to reverse. The Company evaluates the recoverability of future tax deductions by assessing the adequacy of future expected taxable income from all sources, including reversal of temporary differences and
forecasted operating earnings. Net deferred tax assets and liabilities are included in Other assets and Accrued expenses and other liabilities, respectively, on the Consolidated Statements of Financial Condition.

Discontinued operations

Revenues and expenses associated with a separate segment or reporting unit that has been disposed of through closure or sale are included in Loss
from discontinued operations, net of tax on the

Consolidated Statements of Operations. Assets and liabilities of discontinued operations are included in Other assets and Accrued expenses and other liabilities, respectively, on the Consolidated
Statements of Financial Condition. Cash flows from discontinued operations are presented on the Consolidated Statements of Cash Flows within operating, investing and financing activities, as applicable.

Stock-based compensation

Stock-based compensation is measured based on the grant date fair value of the awards. These costs are amortized over the requisite service period,
which is typically the vesting period.

Expected forfeitures are considered in determining stock-based employee compensation expense.
For all periods presented, the Company recorded a benefit for expected forfeitures on all outstanding stock-based awards. The benefit recorded did not have a material impact on the results of operations in any of the periods presented.

The Company applies a non-substantive vesting period approach for stock-based awards whereby the expense is accelerated for those employees and
directors that receive options and restricted stock units (RSUs) and are eligible to retire prior to the options or RSUs vesting.

Variable interest entities

A VIE is an entity that lacks one or more of the following
characteristics (i) the total equity investment at risk is sufficient to enable the entity to finance its activities independently and (ii) the equity holders have the power to direct the activities of the entity that most significantly
impact its economic performance, the obligation to absorb the losses of the entity and the right to receive the residual returns of the entity. The Company has a controlling financial interest and will consolidate a VIE if it has both (i) the
power to direct the activities of the VIE that most significantly impact the VIEs economic performance and (ii) the obligation to absorb losses of the VIE or the right to receive benefits from the VIE that could potentially be significant
to the VIE.

VIEs generally finance the purchase of assets by issuing debt and equity securities that are either collateralized by or
indexed to the assets held by the VIE. The debt and equity securities issued by a VIE may include tranches of varying levels of subordination. The Companys involvement with VIEs includes purchased interests and commitments to VIEs.

The Company is principally involved with VIEs through the following business activities:



Mortgage-backed securities (MBS)  The Company purchases and sells beneficial interests issued by mortgage-backed VIEs in connection with its
trading activities



Securitized HECM loan inventory  The Company sells HECM loans to GNMA trusts which have the characteristics of a VIE and retains certain commitments and
obligations to these trusts

The Companys exposure to the obligations of VIEs is generally limited to its interests in these entities. Nonconsolidated VIEs are aggregated
based on principal business activity.



For MBS, the maximum exposure to loss is the carrying value of these interests



For Securitized HECM loan inventory, the maximum exposure to loss is the value of the obligations as issuer and servicer to the GNMA trust

The carrying values of the Companys variable interests in nonconsolidated VIEs are included in the Consolidated
Statements of Financial Condition as follows:



MBS are included as Debt securities within Financial instruments owned, at fair value



Securitized HECM loan inventory VIEs are captured in the valuation of the Securitized HECM loan inventory and the Liability to GNMA trusts, at fair value

The following table presents the Companys nonconsolidated VIEs at March 31, 2012 and December 31,
2011 (in thousands):

March 31, 2012

SecuritizedHECM loaninventory

MBS

Carrying value of the VIEs

Assets

$

-

$

54,197

Liabilities

464

-

Maximum exposure to loss in nonconsolidated VIEs

Commitments

14,696

-

Purchased interests

-

54,197

December 31, 2011

SecuritizedHECM loaninventory

MBS

Carrying value of the VIEs

Assets

$

-

$

16,399

Liabilities

2,299

-

Maximum exposure to loss in nonconsolidated VIEs

Commitments

12,874

-

Purchased interests

-

16,399

Use of estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets
and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results may differ from those estimates.

In December 2011, the FASB issued an Accounting Standard Update (ASU) that requires additional disclosures about financial assets and
liabilities that are subject to netting arrangements. Under the ASU, financial assets and liabilities must be disclosed at their respective gross asset and liability amounts, the amounts offset on the balance sheet and a description of the
respective netting arrangements. The new disclosures are required for annual reporting periods beginning on or after January 1, 2013, and are to be applied retrospectively. Other than the change in presentation, the Company has determined that
the adoption of this ASU will not have an impact on its Consolidated Financial Statements.

3.

Fair Value of Financial Instruments

The Companys financial instruments recorded at fair value have been categorized based upon a fair value hierarchy, as
described more fully in Footnote 2 Significant Accounting Policies. The following fair value hierarchy table presents information about the Companys financial assets and liabilities measured at fair value on a recurring basis (in
thousands):

Assets and Liabilities Measured atFair Value on a
Recurring Basis

March 31, 2012

Level 1

Level 2

Level 3

Total

Assets

Financial instruments owned, at fair value:

Equities(1)

$

1,863,053

$

-

$

-

$

1,863,053

Listed equity options

207,344

-

-

207,344

U.S. government obligations

6,897

-

-

6,897

Corporate debt

47,182

-

-

47,182

Mortgage-backed securities

11,534

42,663

-

54,197

Loan inventory

-

152,377

-

152,377

Purchased call options

-

12,316

-

12,316

Securitized HECM loan inventory(2)

-

2,248,164

-

2,248,164

Total Financial instruments owned, at fair value

2,136,010

2,455,520

-

4,591,530

Deferred compensation investments(3)

-

22,225

-

22,225

Investment in Deephaven Funds(3)

-

2,156

-

2,156

Total fair value of financial instrument assets

$

2,136,010

$

2,479,901

$

-

$

4,615,911

Liabilities

Financial instruments sold, not yet purchased, at fair value:

Equities(1)

$

1,461,481

$

-

$

-

$

1,461,481

Listed equity options

206,011

-

-

206,011

U.S. government obligations

112,740

-

-

112,740

Corporate debt

48,024

-

-

48,024

Embedded conversion derivative

-

12,316

-

12,316

Foreign currency forward contracts

-

1,401

-

1,401

Total Financial instruments sold, not yet purchased, at fair value

1,828,256

13,717

-

1,841,973

Liability to GNMA trusts, at fair value(2)

-

2,230,072

-

2,230,072

Total fair value of financial instrument liabilities

$

1,828,256

$

2,243,789

$

-

$

4,072,045

(1)

Equities of $671.0 million have been netted by their respective long and short positions by CUSIP number.

Represents HECMs that have been securitized into HECM Mortgage Backed Securities (HMBS) where the securitization is not accounted for as a sale of the underlying
HECMs. See Securitized HECM loan inventory below for full description.

(3)

Deferred compensation investments and investment in the Deephaven Funds are included within Investments on the Consolidated Statements of Financial Condition.

Assets and Liabilities Measured atFair Value on a
Recurring Basis

December 31, 2011

Level 1

Level 2

Level 3

Total

Assets

Financial instruments owned, at fair value:

Equities(1)

$

1,416,090

$

-

$

-

$

1,416,090

Listed equity options

280,384

-

-

280,384

U.S. government obligations

44,316

-

-

44,316

Corporate debt(2)

73,916

-

-

73,916

Mortgage-backed securities

16,399

-

-

16,399

Loan inventory

-

206,572

-

206,572

Purchased call options

-

17,532

-

17,532

Foreign currency forward contracts

-

3,951

-

3,951

Securitized HECM loan inventory(3)

-

1,722,631

-

1,722,631

Total Financial instruments owned, at fair value

1,831,105

1,950,686

-

3,781,791

Deferred compensation investments(4)

-

20,414

-

20,414

Investment in Deephaven Funds(4)

-

1,319

-

1,319

Total fair value of financial instrument assets

$

1,831,105

$

1,972,419

$

-

$

3,803,524

Liabilities

Financial instruments sold, not yet purchased, at fair value:

Equities(1)

$

1,369,750

$

-

$

-

$

1,369,750

Listed equity options

254,506

-

-

254,506

U.S. government obligations

10,644

-

-

10,644

Corporate debt(2)

52,429

-

-

52,429

Embedded conversion derivative

-

17,532

-

17,532

Total return swap

-

17,031

-

17,031

Total Financial instruments sold, not yet purchased, at fair value

1,687,329

34,563

-

1,721,892

Liability to GNMA trusts, at fair value(3)

-

1,710,627

-

1,710,627

Total fair value of financial instrument liabilities

$

1,687,329

$

1,745,190

$

-

$

3,432,519

(1)

Equities of $400.6 million have been netted by their respective long and short positions by CUSIP number.

(2)

Corporate debt of $0.4 million has been netted by respective long and short positions by CUSIP number.

(3)

Represents HECMs that have been securitized into HMBS where the securitization is not accounted for as a sale of the underlying HECMs. See Securitized HECM loan inventory
below for full description.

Deferred compensation investments and investment in the Deephaven Funds are included within Investments on the Consolidated Statements of Financial Condition. Excluded from
investment in the Deephaven Funds is $1.1 million of Level 2 assets which relate to discontinued operations and are included within Other assets on the Consolidated Statements of Financial Condition.

The Companys equities, listed equity options, U.S. government obligations, rated corporate debt, and actively traded mortgage-backed
securities will generally be classified within Level 1 of the fair value hierarchy because they are valued using quoted market prices or broker or dealer quotations with reasonable levels of price transparency.

The types of instruments that trade in markets that are not considered to be active, but are valued based on observable inputs such as quoted
market prices or alternative pricing sources with reasonable levels of price transparency are generally classified within Level 2 of the fair value hierarchy.

Certain instruments are classified within Level 3 of the fair value hierarchy because they trade infrequently and therefore have little or no price transparency. For those instruments that are not traded in active
markets or are subject to transfer restrictions, valuations are adjusted to reflect illiquidity and/or non-transferability, and such adjustments are generally based on available market evidence. In the absence of such evidence, managements
best estimate is used. As of March 31, 2012 and December 31, 2011, the Company did not hold any financial instruments that met the definition of Level 3.

There were no transfers of financial instruments between levels of the fair value hierarchy for any periods presented.

The following is a description of the valuation basis, techniques and significant inputs used by the Company in valuing its Level 2 assets:

Loan inventory

The Companys loan inventory primarily comprises newly issued HECMs that it has originated or purchased and for which the Company has elected
to account for at fair value. Significant inputs that are used in determining fair value include LIBOR and U.S. treasury interest rates, weighted average coupon and pricing of actively-traded HMBS and dealer quotations for HECMs.

Securitized HECM loan inventory

Securitized HECM loan inventory comprises HECMs that the Company has securitized into HMBS. The Company has recorded the securitized loans in Financial instruments owned, at fair value and a corresponding liability
recorded as Liability to GNMA trusts, at fair value, on its Consolidated

Statements of Financial Condition. As of March 31, 2012 and December 31, 2011 all of the HMBS created by the Company has been sold to third parties. Significant inputs that are used in
determining fair value include LIBOR and U.S. treasury interest rates, weighted average coupon and pricing of actively-traded HMBS and dealer quotations for HECMs.

Foreign currency forward contracts

At March 31, 2012 and December 31, 2011, the
Company had a foreign currency forward contract with a notional value of 75.0 million British pounds which is used to hedge the Companys investment in its European subsidiary. As of March 31, 2012 and December 31, 2011, the
Company had a foreign currency forward contract with a notional value of 6.0 million Euros which is used as an economic hedge against a strategic investment that is denominated in Euros. The fair value of the contracts was determined based upon
spot foreign exchange rates, LIBOR interest rates and dealer quotations.

Mortgage-backed securities

The Companys mortgage-backed securities that are not actively traded are priced based upon dealer quotations, prices observed from recently
executed transactions and cash flow models that incorporate LIBOR forward interest rates, weighted average coupon, weighted average loan age, loan to value and other observable inputs.

Purchased call options and embedded conversion derivative

The fair value of the purchased call options and embedded conversion derivative are determined using an option pricing model based on observable inputs such as implied volatility of the Companys common stock,
risk-free interest rate, and other factors.

Deferred compensation investments

Deferred compensation investments comprise investments in liquid mutual funds that the Company acquires to hedge certain of its obligations to
employees and directors under certain non-qualified deferred compensation arrangements. These mutual fund investments can generally be redeemed at any time and are valued based upon quoted market prices.

Investment in the Deephaven Funds

Investment in the Deephaven Funds represents our residual investment in certain funds that were formerly managed by Deephaven Capital Management. These investments are in liquidation and are valued based upon fair
value of the underlying investments within such funds.

Fair value of derivative instruments

The Company enters into derivative transactions, primarily with respect to making markets in listed domestic options. In addition, the Company
enters into derivatives to manage foreign currency exposure and related to its long-term debt (see Footnote 8 Long-Term Debt). Cash flows associated with such derivative activities are included in cash flows from operating activities on
the Consolidated Statements of Cash Flows, when applicable.

The following tables summarize the fair value of derivative instruments in the Consolidated
Statements of Financial Condition and the gains and losses included in the Consolidated Statements of Operations (in thousands):

Asset Derivatives

Statements of FinancialCondition Location

Fair Value as of

March 31,2012

December 31,2011

Derivative instruments not designated as hedging instruments:

Financial instruments owned,at fair value

Purchased call options

$

12,316

$

17,532

Listed equity
options(1)

207,344

280,384

Foreign currency forward contracts

-

477

$

219,660

$

298,393

Derivative instruments designated as hedging instruments:

Financial instruments owned,at fair value

Foreign currency forward contracts

$

-

$

3,474

Liability Derivatives

Derivative instruments not designated as hedging instruments:

Financial instruments sold,not yet purchased, at fairvalue

Embedded conversion derivative

$

12,316

$

17,532

Listed equity
options(1)

206,011

254,506

Total return
swap(2)

-

17,031

Foreign currency forward contracts

117

-

$

218,444

$

289,069

Derivative instruments designated as hedging instruments:

Financial instruments sold,not yet purchased, at fairvalue

Foreign currency forward contracts

$

1,284

$

-

(1)

At March 31, 2012, the Company held 1.1 million long and 1.1 million short listed equity option contracts. At December 31, 2011, the Company held
1.3 million long and 1.5 million short listed equity option contracts. The contracts are not subject to collateral requirements and are not netted.

(2)

At December 31, 2011, the total return swap liability was offset by an asset of equal value that was included in Financial Instruments owned, at fair value on the
Companys Consolidated Statements of Financial Condition. This total return swap was liquidated during the first quarter of 2012.

Realized gains and losses on listed equity options relate to the Companys market making activities in such options. Such market making activities also comprise trading in
the underlying equity securities, with gains and losses on such securities generally offsetting the gains and losses reported in this table. Gains and losses on such equity securities are also included in Net trading revenue on the Companys
Consolidated Statements of Operations.

(2)

Loss on the total return swap is offset by an equal gain on the underlying position which is recorded in Investment income and other, net on the Companys Consolidated
Statements of Operations.

4.

Collateralized Transactions

The Company receives financial instruments as collateral in connection with securities borrowed. Such financial instruments
generally consist of equity and convertible securities but may include obligations of the U.S. government, federal agencies, sovereignties and corporations. In most cases, the Company is permitted to deliver or repledge these financial instruments
in connection with securities lending and other secured financings and meeting settlement requirements.

The table below presents
financial instruments at fair value received as collateral that were permitted to be delivered or repledged and that were delivered or repledged by the Company and in some instances could be further repledged by the receiving counterparty (in
thousands):

March 31,2012

December 31,2011

Collateral permitted to be delivered or repledged

$

1,367,293

$

1,293,173

Collateral that was delivered or repledged

1,289,624

1,226,189

Collateral permitted to be further repledged by the receiving counterparty

The Company also pledges financial instruments that it owns to counterparties who, in turn, are
permitted to deliver or repledge them. The table below presents information about assets pledged by the Company (in thousands):

March 31,2012

December 31,2011

Financial instruments owned, at fair value, pledged to counterparties that had the right to deliver or repledge

$

2,739,075

$

2,121,783

The Company enters into collateralized transactions in order to finance securities positions and loan inventory.
Under these transactions, the Company pledges certain financial instruments owned to collateralize repurchase agreements and other secured financings. Financial instruments owned and pledged to counterparties that do not have the right to sell or
repledge such financial instruments consisted of equity securities and loans. Repurchase agreements and other secured financings are short-term and mature within one year. The table below presents information about assets pledged by the Company (in
thousands):

March 31,2012

December 31,2011

Financial instruments owned, at fair value, pledged to counterparties that do not have the right to deliver or repledge

$

645,679

$

550,926

5.

Receivable from and Payable to brokers, dealers and clearing organizations

Amounts receivable from and payable to brokers, dealers and clearing organizations consist of the following (in thousands):

Common stock of companies representing less than 20% equity ownership held at adjusted cost

1,788

1,787

Total Strategic investments

69,654

61,498

Deferred compensation investments

22,225

20,414

Investment in Deephaven Funds

2,156

1,319

Total Investments

$

94,035

$

83,231

7.

Goodwill and Intangible Assets

Goodwill

Goodwill and intangible assets with an indefinite useful life are tested for impairment annually or when events indicate that the amounts may not
be recoverable. As part of the test for impairment, the Company considers the profitability of the respective segment or reporting unit, an assessment of the fair value of the respective segment or reporting unit as well as the overall market value
of the Company compared to its net book value. In June 2011, the Company tested for the impairment of goodwill as part of its annual assessment and concluded that there was no impairment at that time. As a result of a corporate restructuring the
Company wrote off goodwill of $1.0 million in the Corporate and Other segment during the third quarter of 2011.

No other events
occurred in 2012 or 2011 that would indicate that the carrying amounts of the Companys goodwill may not be recoverable.

The following table summarizes the Companys Goodwill as of March 31, 2012 and
December 31, 2011 (in thousands):

March 31,2012

December 31,2011

Market Making

$

24,727

$

24,727

Institutional Sales and Trading

147,736

147,736

Electronic Execution Services

165,380

165,380

Consolidated Total

$

337,843

$

337,843

Intangible Assets

Intangible assets primarily represent client relationships and are amortized over their estimated remaining useful lives, the majority of which have been determined to range from two to 20 years. The weighted
average remaining life of the Companys intangible assets at both March 31, 2012 and December 31, 2011 is approximately 11 years.

Amortizable intangibles are tested for recoverability on an annual basis and whenever events indicate that the carrying amounts may not be recoverable. No events occurred during the three months ended
March 31, 2012 or 2011 that would indicate that the carrying amounts of the Companys intangible assets may not be recoverable.

The following tables summarize the Companys Intangible assets, net of accumulated
amortization as of March 31, 2012 and December 31, 2011 by segment and type (in thousands):

March 31,2012

December 31,2011

Market Making

Trading rights

$

24,733

$

25,283

Other

50

-

Total

24,783

25,283

Institutional Sales and Trading

Customer and broker relationships

22,654

24,165

Trade names

1,325

1,350

Other

3,527

3,905

Total

27,506

29,420

Electronic Execution Services

Customer and broker relationships

25,782

26,730

Trade names

6,094

6,207

Other

4,825

5,249

Total

36,701

38,186

Consolidated Total

$

88,990

$

92,889

March 31,2012

December 31,2011

Customer and broker relationships(1)

Gross carrying amount

$

93,600

$

93,600

Accumulated amortization

(45,164

)

(42,705

)

Net carrying amount

48,436

50,895

Trading
Rights(2)

Gross carrying amount

28,520

28,520

Accumulated amortization

(3,787

)

(3,237

)

Net carrying amount

24,733

25,283

Trade
names(3)

Gross carrying amount

9,800

9,800

Accumulated amortization

(2,381

)

(2,243

)

Net carrying amount

7,419

7,557

Other(4)

Gross carrying amount

18,811

18,761

Accumulated amortization

(10,409

)

(9,607

)

Net carrying amount

8,402

9,154

Total

Gross carrying amount

150,731

150,681

Accumulated amortization

(61,741

)

(57,792

)

Net carrying amount

$

88,990

$

92,889

(1)

Customer and broker relationships primarily relate to the Donaldson, Direct Trading, Hotspot, EdgeTrade, Libertas, Urban and Astor acquisitions. The weighted average remaining
life is approximately 10 years as of both March 31, 2012 and December 31, 2011. Lives may be reduced depending upon actual retention rates.

As of March 31, 2012, the following table summarizes the Companys estimated amortization expense for the
following future periods (in thousands):

Amortizationexpense

Nine months ended December 31, 2012

$

11,717

For the year ended December 31, 2013

12,880

For the year ended December 31, 2014

10,256

For the year ended December 31, 2015

8,101

For the year ended December 31, 2016

5,341

8.

Long-Term Debt

The Companys Long-term debt is recorded at amortized cost. The carrying value and fair value of such Long-term debt as of
March 31, 2012 and December 31, 2011 is as follows (in thousands):

March 31, 2012

December 31, 2011

Carrying Amount

Fair Value

Carrying Amount

Fair Value

Term Credit Agreement

$

100,000

$

100,000

$

100,000

$

100,000

Convertible Notes

327,761

325,511

324,338

287,505

$

427,761

$

425,511

$

424,338

$

387,505

The carrying value of the Term Credit Agreement approximates fair value as it is not materially sensitive to shifts
in interest rates due to its floating interest rate, which also considers changes in the Companys credit risks and financial condition. The fair value of the Convertible Notes is based upon the value of such debt in the secondary market. The
Term Credit Agreement and the Convertible Notes would both be categorized as Level 2 in the fair value hierarchy if they were required to be recorded at fair value.

Credit Agreements

On June 29, 2011, the Company, as borrower, entered into a $100.0
million three-year Term Loan Credit Agreement (the Term Credit Agreement) with a consortium of banks. The Company, as guarantor, also entered into a $200.0 million one-year Revolving Credit Agreement (the Revolving Credit
Agreement and together with the Term Credit Agreement, the Credit Agreements) with the same consortium of banks with Knight Execution & Clearing Services LLC (KECS) and Knight Capital Americas, L.P.
(KCA), wholly owned subsidiaries of the Company, as borrowers.

The proceeds of the Term Credit Agreement are being used for general corporate purposes. As of March 31, 2012, the Company has borrowed all
the funds under the Term Credit Agreement. Borrowings under the Term Credit Agreement bear interest at variable rates as determined at the Companys election, at LIBOR or a base rate, in each case, plus an applicable margin of (a) for
each LIBOR loan, 2.50% or 3.00% per annum or (b) for each base rate loan, 1.50% or 2.00% per annum (in each case, depending on the Companys leverage ratio). As of March 31, 2012, the interest rate was 2.75% per annum,
which is based on the one month LIBOR rate plus 2.50%. Interest is paid monthly. The Term Credit Agreement is repayable in three installments as follows: $25.0 million on June 28, 2013, $25.0 million on December 27, 2013 and $50.0
million on June 27, 2014.

Under the Term Credit Agreement, substantially all of the Companys material subsidiaries (the
Guarantors), other than its foreign subsidiaries, excluded regulated subsidiaries (which include registered broker-dealer subsidiaries) and subsidiaries thereof, guarantee the repayment of loans made pursuant to the Term Credit
Agreement. The Term Credit Agreement is secured by substantially all of the assets of the Company and the Guarantors unless and until the Company obtains an investment grade rating.

Revolving Credit Agreement

The Revolving Credit Agreement comprises two classes of loans: Borrowing Base A and Borrowing Base B. The proceeds of the Borrowing Base A Loans
are available to KECS and KCA and may be used to meet the short-term liquidity needs of KECS and KCA arising in the ordinary course of clearing and settlement activity. The proceeds of the Borrowing Base B Loans are only available to KECS and can
only be used to fund National Securities Clearing Corporation (NSCC) margin deposits.

Borrowings under the Revolving Credit
Agreement bear interest at a rate equal to the greater of the federal funds rate or the one month LIBOR rate plus (a) for each Borrowing Base A Loan, a margin of 1.50% per annum and (b) for Borrowing Base B Loans, a margin of
2.00% per annum. Interest is payable quarterly. As of March 31, 2012 and December 31, 2011, there were no outstanding borrowings under the Revolving Credit Agreement. Any amounts borrowed are repayable on June 27, 2012 which is
the expiration date of the Revolving Credit Agreement.

The Company is charged an annual commitment fee of 0.25% on the average daily
amount of the unused portion of the Revolving Credit Agreement. Depending on each borrowing base, availability under the Revolving Credit Agreement is limited to either (i) a percentage of the market value of temporary positions pledged as
collateral in the case of Borrowing Base A Loans, or (ii) a percentage of the margin deposit required by the NSCC in the case of Borrowing Base B Loans.

Among other restrictions, the Credit Agreements include customary representations, warranties, affirmative and negative covenants related to (a) liens, (b) financial covenant requirements for maintaining
a consolidated leverage ratio and a liquidity ratio, as well as requirements for maintaining minimum levels of tangible net worth and regulatory capital, and (c) restrictions on investments, dispositions and other restrictions and events of
default customary for financings of these types. As of March 31, 2012, the Company was in compliance with all covenants under the Credit Agreements.

In connection with the Credit Agreements, the Company incurred issuance costs of $2.2 million. The
issuance costs are recorded within Other assets on the Consolidated Statements of Financial Condition and are amortized over the term of the Credit Agreements.

Cash Convertible Senior Subordinated Notes

In March 2010, the Company issued $375.0 million
of Cash Convertible Senior Subordinated Notes (the Notes) due on March 15, 2015 in a private offering exempt from registration under the Securities Act of 1933, as amended. At the same time, the Company entered into hedge
transactions effected through the purchase of options and sale of warrants designed to limit shareholder dilution up to a price of $31.50 per share.

The Notes bear interest at a rate of 3.50% per year, payable semi-annually in arrears, on March 15 and September 15 of each year, commencing on September 15, 2010 and will mature on
March 15, 2015, subject to earlier repurchase or conversion. In connection with the issuance of the Notes, the Company recognized an original issue discount of $73.8 million which is being accreted to interest expense over the term of the
Notes, resulting in an effective annual interest rate of the Notes of approximately 7.90%. The Notes, net of unamortized original issue discount are reported as Long-term debt in the Companys Consolidated Statements of Financial Condition.

Prior to December 15, 2014, the Notes will be convertible into cash only upon specified events which are based upon the price of
the Companys common shares and of the Notes or upon the occurrence of specified corporate events. On or after December 15, 2014, the Notes will be convertible at any time, based on an initial conversion rate of 47.9185 shares of the
Companys Class A common stock per $1,000 principal amount of Notes, which is equivalent to an initial conversion price of approximately $20.87 or a conversion premium of approximately 32.5% over the closing sale price of $15.75 per share
of the Companys Class A common stock on the Nasdaq Global Select Market on March 15, 2010. The conversion rate and conversion price will be subject to adjustment in certain events, such as distributions of dividends or stock splits.
Upon cash conversion, the Company will deliver an amount of cash calculated over the applicable observation period. The Company will not deliver its common stock (or any other securities) upon conversion under any circumstances. In addition,
following certain corporate events that occur prior to the maturity date, the Company will pay a cash make-whole premium by increasing the conversion rate for a holder who elects to convert its Notes in connection with such a corporate event in
certain circumstances. Subject to certain exceptions, holders may require the Company to repurchase, for cash, all or part of the Notes upon a fundamental change at a price equal to 100% of the principal amount of the Notes being
repurchased plus any accrued and unpaid interest.

Concurrent with the sale of the Notes, the Company paid $73.7 million to enter into
privately negotiated cash convertible note hedge transactions (the purchased call options) with affiliates of the initial purchasers of the Notes and another financial institution (the option counterparties) that are expected
generally to reduce the Companys exposure to potential cash payments in excess of the principal amount of the Notes that may be required to be made by the Company upon the cash conversion of the Notes under certain conditions. The purchased
call options cover, subject to adjustments, approximately 18 million shares of the Companys Class A common stock at a strike price of $20.87 and are expected to reduce the Companys economic exposure to potential cash payments
in the event that the market price per share of the Companys Class A common stock is greater than

the conversion price of the Notes. The purchased call options were recorded as an asset within Financial instruments owned, at fair value on the Consolidated Statements of Financial Condition and
is accounted for as derivative instruments under GAAP. As of March 31, 2012, the fair value of the purchased call options was $12.3 million.

In connection with the sale of the Notes, the Company also entered into separate warrant transactions with the option counterparties whereby the Company sold to the option counterparties, for $15.0 million,
warrants (the warrants) to purchase shares of the Companys Class A common stock, subject to adjustments, at a strike price of $31.50 per share, which represents a premium of approximately 100% over the closing price of the
Companys Class A common stock on March 15, 2010. The warrants are net share settled, meaning that the Company will issue a number of shares per warrant having a value equal to the difference between the share price at each warrant
expiration date and the strike price; however, at the discretion of the Company, the Company may elect to settle the warrants in cash. If the market price per share of the Companys Class A common stock exceeds the strike price of the
warrants over the warrants exercise period and the Company elects net share settlement, the warrants would have a dilutive effect on the Companys Class A common stock. The warrants may not be exercised prior to the maturity of the
Notes. The warrants have been recorded as Additional paid-in capital in the Consolidated Statements of Financial Condition. The warrants also meet the criteria of derivative instruments under GAAP; however, because the warrants are indexed to the
Companys Class A common stock and are recorded within Equity in the Consolidated Statements of Financial Condition, the warrants are exempt from the scope and fair value provisions of GAAP related to accounting for derivative instruments.

The requirement that the Company settle conversions of the Notes entirely in cash gives rise to a bifurcatable derivative instrument
under GAAP (the embedded conversion derivative). The initial valuation of the embedded conversion derivative was $73.8 million, and was recorded as a liability within Financial instruments sold, not yet purchased, at fair value on the
Consolidated Statements of Financial Condition. As of March 31, 2012, the fair value of the embedded conversion derivative was $12.3 million.

Both the purchased call options and the embedded conversion derivative are derivative instruments and as such are marked to fair value each reporting period with any change recognized on the Consolidated Statements
of Operations as Investment income and other, net. The Company expects the gain or loss associated with changes to the valuation of the purchased call options to substantially offset the gain or loss associated with changes to the valuation of the
embedded conversion derivative.

In connection with the issuance of the Notes, the Company incurred issuance costs of $8.5 million. The
issuance costs are recorded within Other assets on the Consolidated Statements of Financial Condition and are amortized over the term of the Notes.

The Company recorded expenses with respect to the Long-Term Debt as follows (in thousands):

For the three months ended March 31,

2012

2011

Interest expense

$

7,399

$

6,434

Amortization of debt issuance cost(1)

778

425

Commitment
Fee(1)

126

-

Total

$

8,303

$

6,859

(1)

Included in Other expense on the Consolidated Statements of Operations.

9.

Stock-Based Compensation

The Knight Capital Group, Inc. 2010 Equity Incentive Plan (2010 Plan) was established to provide long-term incentive
compensation to employees and directors of the Company. The 2010 Plan is administered by the Compensation Committee of the Companys Board of Directors, and allows for the grant of options, stock appreciation rights, restricted stock and
restricted stock units (collectively, the awards), as defined by the 2010 Plan. In addition to overall limitations on the aggregate number of awards that may be granted, the 2010 Plan also limits the number of awards that may be granted
to a single individual. The 2010 Plan replaced prior stockholder-approved equity plans for future equity grants and no additional grants will be made under those historical stock plans. However, the terms and conditions of any outstanding equity
grants under the historical stock plans were not affected. As of March 31, 2012, the Company has not issued any stock appreciation rights. In addition, the Company established the Knight Capital Group, Inc. 2009 Inducement Award Plan (the
Inducement Plan) (along with the 2010 Plan, the Stock Plans) which is used under limited circumstances for equity grants to new hires. The Company did not issue any awards pursuant to the Inducement Plan in the first quarter
of 2012 or 2011.

Unvested awards granted before September 1, 2010 are generally canceled if employment is terminated for any
reason before the end of the relevant vesting period. For annual incentive awards granted after September 1, 2010 and up to September 30, 2011, full vesting is given where an employee has been terminated without cause by the Company. For
all other awards granted after September 1, 2010 and up to September 30, 2011 unvested awards are generally canceled if employment is terminated for any reason before the end of the relevant vesting period. Effective October 1, 2011,
for all awards granted after such date, unless otherwise provided for in the applicable award agreement, full vesting will be given where an employee has been terminated without cause by the Company.

Restricted Shares and Restricted Stock Units

Eligible employees and directors may receive restricted shares and/or restricted stock units (collectively restricted awards) as a
portion of their total compensation. The majority of restricted awards vest ratably over three years. The Company has also issued restricted awards that vest based upon the market price of Knights common stock reaching a certain price for a
specified period of time, however no such awards were granted in 2012 or 2011. The Company has the right to fully vest employees and directors in their restricted stock units upon retirement and in certain other circumstances.

The Company measures compensation cost related to restricted awards based on the fair value of the
Companys common stock at the date of grant. Compensation expense relating to restricted awards, primarily recorded in Employee compensation and benefits, and the corresponding income tax benefit, which was recorded in Income tax expense on the
Consolidated Statements of Operations are presented in the following table (in thousands):

For the three months ended March 31,

2012

2011

Stock award compensation expense

$

13,425

$

14,712

Income tax benefit

$

5,370

$

5,885

The following table summarizes restricted awards activity during the three months ended March 31, 2012 (shares
and units in thousands):

Restricted Shares

Restricted Stock Units

Numberof Shares

Weighted-AverageGrant dateFair Value

Numberof Units

Weighted-AverageGrant dateFair Value

Outstanding at January 1, 2012

307

$

16.20

7,716

$

14.33

Granted

21

13.09

3,577

13.09

Vested

(107

)

15.78

(1,855

)

15.31

Forfeited

(4

)

15.05

(102

)

13.59

Outstanding at March 31, 2012

217

$

16.12

9,336

$

13.67

There is $85.1 million of unamortized compensation related to unvested restricted awards outstanding at
March 31, 2012. The cost of these unvested restricted awards is expected to be recognized over a weighted average life of 2.0 years.

Stock
Options

The Companys policy is to grant options for the purchase of shares of Class A Common Stock at not less than
market value. Options generally vest ratably over a three or four-year period and expire on the fifth or tenth anniversary of the grant date, pursuant to the terms of the applicable option award agreement. The Company has the right to fully vest
employees in their options upon retirement and in certain other circumstances. Options are otherwise canceled if employment is terminated before the end of the relevant vesting period. The Companys policy is to issue new shares upon share
option exercises by its employees and directors.

The fair value of each option granted is estimated as of its respective grant date
using the Black-Scholes option-pricing model. Stock options granted have exercise prices equal to the market value of the Companys common stock at the date of grant as defined by the Stock Plans. The principal assumptions utilized in valuing
options and the methodology for estimating such model inputs include: (1) risk-free interest rate  estimate is based on the yield of U.S. zero coupon securities with a maturity equal to the expected life of the option; (2) expected
volatility  estimate is based on several factors including implied volatility of market-traded options on the Companys common stock on the grant date

and the volatility of the Companys common stock; and (3) expected option life  estimate is based on internal studies of historical experience and projected exercise behavior
based on different employee groups and specific option characteristics, including the effect of employee terminations. The Company did not grant any options during the three months ended March 31, 2012 or March 31, 2011.

Compensation expense relating to stock options, which was recorded in Employee compensation and benefits, and the corresponding income tax benefit,
which was recorded in Income tax expense on the Consolidated Statements of Operations are as follows (in thousands):

For the three months ended March 31,

2012

2011

Stock option compensation expense

$

292

$

554

Income tax benefit

$

117

$

222

The following table summarizes stock options activity during the three months ended March 31, 2012 (shares and
units in thousands):

Number ofStock Options

Weighted-AverageExercisePrice

Outstanding at January 1, 2012

2,829

$

13.48

Granted at market value

-

-

Exercised

(93

)

9.58

Forfeited or expired

(4

)

15.84

Outstanding at March 31, 2012

2,732

$

13.61

Exercisable at March 31, 2012

2,454

$

13.34

Available for future grants at March 31, 2012*

6,821

*

Represents both options and awards available for grant

There is $1.0 million of unrecognized compensation related to unvested stock options outstanding at March 31, 2012. The cost of these unvested awards is expected to be recognized over a weighted average life
of 0.8 years.

The Company and its subsidiaries file a consolidated federal income tax return as well as combined state income tax returns in
certain jurisdictions. In other jurisdictions, the Company and its subsidiaries file separate company state and local income tax returns.

The following table reconciles the U.S. federal statutory income tax rate to the Companys actual income tax rate:

For the three months ended March 31,

2012

2011

U.S. federal statutory income tax rate

35.0

%

35.0

%

U.S. state and local income taxes, net of U.S. federal income tax effect

3.5

%

3.8

%

Nondeductible charges and Other, net

0.2

%

0.0

%

Actual income tax rate

38.7

%

38.8

%

At March 31, 2012, the Company had $2.8 million of unrecognized tax benefits, all of which would affect the
Companys effective tax rate if recognized.

As of March 31, 2012, the Company is subject to U.S. Federal income tax
examinations for the tax years 2006 through 2010, and to non-U.S. income tax examinations for the tax years 2007 through 2010. In addition, the Company is subject to state and local income tax examinations in various jurisdictions for the tax
years 2003 through 2010. The final outcome of these examinations is not yet determinable. However, the Company anticipates that adjustments to the unrecognized tax benefits, if any, will not result in a material change to the results of
operations or financial condition.

The Companys policy for recording interest and penalties associated with audits is to record
such items as a component of Income from continuing operations before income taxes. Penalties, if any, are recorded in Other expenses and interest paid or received is recorded in Interest expense and Interest, net, on the Consolidated
Statements of Operations.

Basic earnings per common share (EPS) have been calculated by dividing net income by the weighted average shares of
Class A Common Stock outstanding during each respective period. Diluted EPS reflects the potential reduction in EPS using the treasury stock method to reflect the impact of common stock equivalents if stock options were exercised and restricted
awards were to vest.

The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per share
computations for the three months ended March 31, 2012 and 2011 (in thousands):

For the three months ended March 31,

2012

2011

Numerator /net income

Denominator /shares

Numerator /net income

Denominator /shares

Income and shares used in basic calculations

$

33,106

89,764

$

30,491

91,897

Effect of dilutive stock based awards

-

2,411

-

1,771

Income and shares used in diluted calculations

$

33,106

92,175

$

30,491

93,668

Basic earnings per share

$

0.37

$

0.33

Diluted earnings per share

$

0.36

$

0.33

The above calculations exclude options that could potentially dilute EPS in the future but were antidilutive for
the periods presented. The number of such options excluded was approximately 1.7 million and 2.2 million for the three months ended March 31, 2012 and 2011, respectively.

The Company considers significant clients to be those clients who account for 10% or more of the total U.S. equity dollar value
traded or fixed income notional value traded by the Company. No clients accounted for more than 10% of the Companys U.S. equity dollar value traded or fixed income notional value traded during the three months ended March 31, 2012 or
2011.

13.

Commitments and Contingent Liabilities

In the ordinary course of business, the nature of the Companys business subjects it to claims, lawsuits, regulatory
examinations and other proceedings. The Company is subject to several of these matters at the present time. Given the inherent difficulty of predicting the outcome of the litigation and regulatory matters, particularly in cases or proceedings in
which substantial or indeterminate damages or fines are sought, or where cases or proceedings are in the early stages, the Company cannot estimate losses or ranges of losses for cases or proceedings where there is only a reasonable possibility that
a loss may be incurred. There can be no assurance that these matters will not have a material adverse effect on the Companys results of operations in any future period and a material judgment could have a material adverse impact on the
Companys financial condition and results of operations. However, it is the opinion of management, after consultation with legal counsel that, based on information currently available, the ultimate outcome of these matters will not have a
material adverse impact on the business, financial condition or operating results of the Company although they might be material to the operating results for any particular period, depending, in part, upon operating results for that period.

The Company leases office space under noncancelable operating leases. Certain office leases contain fixed dollar-based escalation
clauses. Rental expense under the office leases was $4.0 million and $5.0 million for the three months ended March 31, 2012 and 2011, respectively, and is included in Occupancy and equipment rentals on the Consolidated Statements of Operations.

During the three months ended March 31, 2011, the Company recorded a lease loss accrual of $0.9 million related to excess office
space in New York City.

The Company leases certain computer and other equipment under noncancelable operating leases. As
of March 31, 2012, future minimum rental commitments under all noncancelable office, computer and equipment leases (Gross Lease Obligations) and Sublease Income were as follows (in thousands):

Lease & Contract Obligations

Gross LeaseObligations

SubleaseIncome

Net LeaseObligations

Nine months ending December 31, 2012

18,116

1,206

16,910

Year ending December 31, 2013

22,145

1,677

20,468

Year ending December 31, 2014

21,324

1,484

19,840

Year ending December 31, 2015

20,530

1,300

19,230

Year ending December 31, 2016

20,121

1,333

18,788

Thereafter through August 31, 2023

97,205

1,604

95,601

$

199,441

$

8,604

$

190,837

During the normal course of business, the Company collateralizes certain leases or other contractual obligations
through letters of credit or segregated funds held in escrow accounts. As of March 31, 2012, the Company has provided a letter of credit for $1.0 million, collateralized by U.S. Treasury Bills, as a guarantee for one of the Companys lease
obligations. In the ordinary course of business, Knight Capital Group, Inc. also has provided, and may provide in the future, unsecured guarantees with respect to the payment obligations of certain of its subsidiaries under trading, repurchase,
financing and stock loan arrangements, as well as under certain leases.

The Company has issued floating rate HECMs for which the
borrowers have additional borrowing capacity of approximately $306.1 million as of March 31, 2012. This additional borrowing capacity is primarily in the form of undrawn lines of credit, with the balance available on a scheduled payments basis.
As the issuer of these HECMs, the Company is under the obligation to fund this capacity upon the borrowers requesting such funds or such scheduled payments coming due, as applicable.

During the normal course of business, the Company may enter into futures contracts. These financial instruments are subject to varying degrees of
risks whereby the fair value of the securities underlying the financial instruments, may be in excess of, or less than, the contract amount. The Company is obligated to post collateral against certain futures contracts.

As a market maker of equities and options, the majority of the Companys securities transactions are conducted as principal
or riskless principal with broker-dealers and institutional counterparties primarily located in the United States. The Company self-clears substantially all of its U.S. equity securities transactions. The Company clears a portion of its securities
transactions through third party clearing brokers. Foreign transactions are settled pursuant to global custody and clearing agreements with major U.S. banks. Substantially all of the Companys credit exposures are concentrated with its clearing
brokers, broker-dealer and institutional counterparties. The Companys policy is to monitor the credit standing of counterparties with which it conducts business.

In the normal course of its operations, the Company enters into contracts that contain a variety of representations and warranties which provide general indemnifications. The Companys maximum exposure under
these arrangements is unknown, as this would involve future claims that may be made against the Company that have not yet occurred. However, based on experience, the Company believes the risk of loss is minimal.

Financial instruments sold, not yet purchased, at fair value represent obligations to purchase such securities (or underlying securities) at a
future date. The Company may incur a loss if the market value of the securities subsequently increases.

The Company currently has no
loans outstanding to any former or current executive officer or director.

15.

Business Segments

The Company has four operating segments: (i) Market Making, (ii) Institutional Sales and Trading,
(iii) Electronic Execution Services and (iv) Corporate and Other.

The Market Making segment principally consists of market
making in global equities and listed domestic options. Market Making primarily includes client, and to a lesser extent, non-client electronic market making and cash trading activities in which the Company operates as a market maker in equity
securities. Market Making also includes the Companys option market making business which trades on substantially all domestic electronic exchanges.

The Institutional Sales and Trading segment includes global equity, ETFs, and fixed income sales; reverse mortgage origination and securitization; capital markets; and asset management activities. The primary
business of the Institutional Sales and Trading segment is to execute and facilitate transactions predominantly as agent on behalf of institutional clients for equities and fixed income offerings, and the Company commits its capital on behalf of its
clients when needed. This is predominantly a full-service business, in which much of the interaction is based on the Companys

client relationships. This segment also facilitates client orders through program and block trades and riskless principal trades. The Company provides capital markets services, including equity
and debt private placement.

The Corporate and Other segment
invests in strategic financial services-oriented opportunities, allocates, deploys and monitors all capital, and maintains corporate overhead expenses and other expenses that are not attributable to the other segments. The Corporate and Other
segment houses functions that support Knights other segments such as self-clearing services, including stock lending, and other support and overhead.

The Companys revenues, income (loss) from continuing operations before income taxes (Pre-tax earnings) and total assets by segment are summarized in the following table (in thousands):

Market Making

InstitutionalSales andTrading

ElectronicExecutionServices

Corporateand Other

ConsolidatedTotal

For the three months ended March 31, 2012:

Revenues

$

152,165

$

142,237

$

44,248

$

10,375

$

349,025

Pre-tax earnings

45,130

14,656

12,265

(18,052

)

54,000

Total assets

1,997,244

3,885,034

291,977

1,829,457

8,003,712

For the three months ended March 31, 2011:

Revenues

$

167,188

$

127,371

$

40,333

$

4,882

$

339,774

Pre-tax earnings

63,368

(7,691

)

11,358

(16,952

)

50,083

Total
assets(1)

1,929,826

1,755,131

260,465

1,833,449

5,778,872

(1)

 Total assets do not include assets within discontinued operations of $3.6 million at March 31, 2011.

Managements Discussion and Analysis of Financial Condition and Results of Operations

The following discussion of our results of operations should be read in conjunction with our consolidated financial statements and notes thereto
included in our Annual Report on Form 10-K for the year ended December 31, 2011 as filed with the U.S. Securities and Exchange Commission (SEC). This discussion contains forward-looking statements that involve risks and
uncertainties, including those discussed in our Form 10-K. Our actual results may differ materially from those anticipated in these forward-looking statements as a result of certain factors, including, but not limited to, those set forth elsewhere
in this document and in our Form 10-K.

Certain statements contained in this Quarterly Report on Form 10-Q, including, without
limitation, those under Managements Discussion and Analysis of Financial Condition and Results of Operations herein (MD&A), Quantitative and Qualitative Disclosures About Market Risk in Part I,
Item 3, Legal Proceedings in Part II and the documents incorporated by reference, may constitute forward-looking statements. These forward-looking statements are not historical facts and are based on current expectations, estimates
and projections about the Companys industry, managements beliefs and certain assumptions made by management, many of which, by their nature, are inherently uncertain and beyond our control. Accordingly, readers are cautioned that any
such forward-looking statements are not guarantees of future performance and are subject to certain risks, uncertainties and assumptions that are difficult to predict including, without limitation, risks related to the corporate restructuring in the
third quarter of 2011, including the ability to recognize anticipated cost savings, the possibility of unexpected costs or expenditures, and the impact of the restructuring on the Companys businesses and results of operations, risks associated
with changes in market structure, legislative, regulatory or financial reporting rules, risks associated with the Companys changes to its organizational structure and management and the costs, integration, performance and operation of
businesses previously acquired or developed organically, or that may be acquired or developed organically in the future. Readers should carefully review the risks and uncertainties disclosed in the Companys reports with the SEC including,
without limitation, those detailed under Certain Factors Affecting Results of Operations within MD&A herein and under Risk Factors in the Companys Annual Report on Form 10-K for the year ended December 31, 2011
and in other reports or documents the Company files with, or furnishes to, the SEC from time to time. This information should also be read in conjunction with the Companys Consolidated Financial Statements and the Notes thereto contained in
this Form 10-Q, and in other reports or documents the Company files with, or furnishes to, the SEC from time to time.

Executive Overview

We are a global financial services firm that provides access to the capital markets across multiple asset classes to a broad
network of clients, including broker-dealers, institutions and corporations. We seek to continually apply our expertise and innovation to the market making and trading process to build lasting client relationships through consistent performance and
superior client service. We also provide capital markets services to corporate issuers and private companies. We have four operating segments: (i) Market Making, (ii) Institutional Sales and Trading, (iii) Electronic Execution
Services and (iv) Corporate and Other.



Market Making  Our Market Making segment principally consists of market making in global equities and listed domestic options. As a market maker, we
commit capital for trade executions by offering to buy securities from, or sell securities to, institutions and broker-dealers. Our Market Making segment primarily includes client, and to a lesser extent, non-client electronic market making
activities in which we operate as a market maker in equity securities quoted and traded on the Nasdaq Stock Market, the over-the-counter (OTC) market for New York Stock Exchange (NYSE), NYSE Amex Equities (NYSE
Amex), NYSE

Arca listed securities and several European exchanges. As a complement to electronic market making, our cash trading business handles specialized orders and also transacts on the OTC Bulletin
Board, the OTC Pink Markets, and the Alternative Investment Market (AIM) of the London Stock Exchange. We provide trade executions as an equities Designated Market Maker (DMM) on the NYSE and NYSE Amex. Market Making also
includes our option market making business which trades on substantially all domestic electronic exchanges.



Institutional Sales and Trading  Our Institutional Sales and Trading segment includes global equity, exchange traded funds (ETFs) and
fixed income sales; reverse mortgage origination and securitization; capital markets; and asset management activities. The primary business of the Institutional Sales and Trading segment is to execute and facilitate equities, ETFs, and fixed income
transactions as agent on behalf of institutional clients, and we commit capital on behalf of our clients when needed. This is predominantly a full-service execution business, in which much of the interaction is based on the Companys client
relationships. This segment also facilitates client orders through program and block trades and riskless principal trades and provides capital markets services, including equity and debt private placement.



Electronic Execution Services  Our Electronic Execution Services segment offers access via our electronic agency-based platforms to markets and
self-directed trading in equities, options, fixed income, foreign exchange and futures. In contrast to Market Making, we generally do not act as a principal to transactions that are executed within this segment and generally earn commissions for
acting as agent between the principals to the trade.



Corporate and Other  Our Corporate and Other segment invests in strategic financial services-oriented opportunities, allocates, deploys and monitors
all capital, and maintains corporate overhead expenses and all other income and expenses that are not attributable to the other segments. The Corporate and Other segment houses functions that support our other segments such as self-clearing
services, including stock lending activities.

The following table sets forth: (i) Revenues, (ii) Expenses and (iii) Pre-tax earnings
or loss from our segments and on a consolidated basis (in millions):

For the three months ended March 31,

2012

2011(1)

Market Making

Revenues

$

152.2

$

167.2

Expenses

107.0

103.8

Pre-tax earnings

45.1

63.4

Institutional Sales and Trading

Revenues

142.2

127.4

Expenses

127.6

135.1

Pre-tax earnings (loss)

14.7

(7.7

)

Electronic Execution Services

Revenues

44.2

40.3

Expenses

32.0

29.0

Pre-tax earnings

12.3

11.4

Corporate and Other

Revenues

10.4

4.9

Expenses

28.4

21.8

Pre-tax loss

(18.1

)

(17.0

)

Consolidated

Revenues

349.0

339.8

Expenses

295.0

289.7

Pre-tax earnings

$

54.0

$

50.1

*

Totals may not add due to rounding.

(1)

 Prior period amounts have been recast to conform with current period segment presentation. Such recast had no effect on previously reported Consolidated Pre-tax earnings.

Consolidated Revenues for the three months ended March 31, 2012 increased $9.3 million, or 2.7%, from the same
period a year ago, while Consolidated Expenses increased $5.3 million, or 1.8%. Consolidated Pre-tax earnings for the three months ended March 31, 2012 increased $3.9 million, or 7.8%, from the same period a year ago.

The changes in our Pre-tax earnings (loss) by segment from the three months ended March 31, 2011 are summarized as follows:



Market Making  Our Pre-tax earnings from Market Making for the three months ended March 31, 2012 decreased by $18.2 million, or 28.8%, from the
comparable period in 2011. The quarter over quarter decrease is primarily due to a decrease in volumes and lower revenues from both our client and non-client quantitative trading models offset, in part, by slightly higher average revenue capture per
U.S. equity Market Making dollar value traded.



Institutional Sales and Trading  Our Pre-tax gain from Institutional Sales and Trading for the three months ended March 31, 2012 increased by
$22.3 million, from a loss in the comparable period in 2011. The quarter over quarter improvement is primarily due to increased earnings from our fixed income business, including our reverse mortgage

business, and listed derivatives business and decreases in guaranteed compensation expense in our fixed income business offset, in part, by higher transaction-based expense and lower revenues
from our equity sales and capital markets businesses.



Electronic Execution Services  Our Pre-tax earnings from Electronic Execution Services for the three months ended March 31, 2012 increased by
$0.9 million, or 8.0%, from the comparable period in 2011. The increase is primarily due to higher revenues from increased volumes in our Knight Direct business.



Corporate and Other  Our Pre-tax loss from our Corporate and Other segment for the three months ended March 31, 2012 increased by $1.1 million,
or 6.5%, from the comparable period in 2011. The increased loss is primarily due to higher interest expense related to our long-term debt and stock loan activity for the three months ended March 31, 2012 offset, in part, by higher interest
income from our stock borrow activity.

Certain Factors Affecting Results of Operations

We may experience significant variation in our future results of operations. These fluctuations may result from numerous factors, including, among
other things, market conditions and the resulting volatility, credit and counterparty risks that may result; introductions of, or enhancements to, trade execution services by us or our competitors; the value of our securities positions and other
financial instruments and our ability to manage the risks attendant thereto; the volume of our trade execution activities; the dollar value of securities and other instruments traded; the composition and profile of our order flow; our market share
with institutional and broker-dealer clients; the performance and size of, and volatility in, our client market making and program trading portfolios; the performance of our non-client principal trading activities; movements of credit spreads; home
equity conversion mortgages (HECMs) origination and HECM Mortgage Backed Securities (HMBS) securitization volumes; the overall size of our balance sheet and capital usage; the performance of our global operations; costs
associated with overall business growth; the effectiveness of our self-clearing platform and our ability to manage risk related thereto; the availability of credit and liquidity in the marketplace; our ability to manage personnel, compensation,
overhead and other expenses; the strength of our client relationships; changes in payments for order flow; changes to execution quality and changes in clearing, execution and regulatory transaction costs; interest rate movements; the addition or
loss of executive management, sales, trading and technology professionals; legislative, legal, regulatory and financial reporting changes; legal, regulatory matters or proceedings; geopolitical risk; the amount, timing and cost of capital
expenditures, acquisitions and divestitures; the integration, performance and operation of acquired businesses; the incurrence of costs associated with acquisitions and dispositions; investor sentiment; technological changes and events; seasonality;
competition; and other economic conditions.

Such factors may also have an impact on our ability to achieve our strategic objectives,
including, without limitation, increases in market share, growth and profitability in our four operating segments. If demand for our services declines or our performance deteriorates significantly due to any of the above factors, and we are unable
to adjust our cost structure on a timely basis, our operating results could be materially and adversely affected. As a result of the foregoing factors, period-to-period comparisons of our revenues and operating results are not necessarily meaningful
and such comparisons cannot be relied upon as indicators of future performance. There also can be no assurance that we will be able to continue the rates of revenue growth that we have experienced in the past or that we will be able to improve our
operating results.

Our businesses are affected by many factors in the global
financial markets and worldwide economic conditions. These factors include the growth level of gross domestic product in the U.S., Europe and Asia, and the existence of transparent, efficient and liquid equity and debt markets and the level of
trading volumes and volatility in such markets.

During the quarter ended March 31, 2012, volatility levels across equity markets
decreased significantly as compared to the previous quarter, while in the debt markets, credit spreads tightened. Overall, there are still concerns about global stability and growth, inflation and declining asset values.

Trends Affecting Our Company

We believe that our businesses are affected by the aforementioned global economic trends as well as more specific trends. Some of the specific trends that impact our operations, financial condition and results of
operations are:



Clients continue to focus on statistics measuring the quality of equity executions (including speed of execution and price improvement). In an effort to improve
the quality of their executions as well as increase efficiencies, market makers have increased the level of automation within their operations and the extent of price improvement. The greater focus on execution quality has resulted in greater
competition in the marketplace, which, along with market structure changes and market conditions, has negatively impacted the revenue capture and margin metrics of the Company and other market making firms.



Market Making, Institutional Sales and Trading and Electronic Execution Services transaction volumes executed by clients have fluctuated over the past few years
due to retail and institutional investor sentiment, market conditions and a variety of other factors. Market Making, Institutional Sales and Trading and Electronic Execution Services transaction volumes may not be sustainable and are not
predictable.



Over the past several years exchanges have become far more competitive, and market participants have created alternative trading systems (ATS), ECN
and other execution venues which compete within the OTC and listed trading venues. In addition, there are many new entrants into the market, including ATS, Multilateral Trading Facilities, systematic internalizers, dark liquidity pools, high
frequency trading firms, and market making firms competing for retail and institutional order flow. Further, many broker-dealers are offering their own internal crossing networks. These factors continue to create further fragmentation and
competition in the marketplace.



Over the past few years, market structure changes, competition, market conditions and a steady increase in electronic trading have resulted in a reduction in
institutional commission rates and volumes which may continue in the future. Additionally, many institutional clients allocate commissions to broker-dealers based not only on the quality of executions, but also in exchange for research, or
participation in soft dollar and commission recapture programs.



There continues to be growth in electronic trading, as evidenced by increased volumes over the past few years in direct market access platforms, algorithmic
and program trading, high frequency trading and ECNs and dark liquidity pools. In addition, electronic trading continues to expand to other asset classes, including options, currencies and fixed income. The

expansion of electronic trading may result in the growth of innovative electronic products and competition for order flow and may further reduce demand for traditional institutional
voice services.



Market structure changes, competition and technology advancements have also led to a dramatic increase in electronic message traffic. These increases in message
traffic place heavy strains on the technology resources, bandwidth and capacities of market participants.



There has been continued scrutiny of the capital markets industry by the regulatory and legislative authorities, both in the U.S. and abroad. New legislation or
new or modified regulations and rules could occur in the future. Members of the U.S. Congress have raised various concerns about the regulatory structure of the U.S. financial markets and have asked the SEC and other regulators to take a close look
at the regulatory structure and make the changes necessary to insure the rule framework governing the U.S. financial markets is comprehensive and complete. The SEC and other regulators have stated that they will propose and adopt rules where
necessary, on a variety of marketplace issuesincluding, but not limited to: high frequency trading, indications of interest, off-exchange trading, dark liquidity pools, internalization, post-trade attribution, co-location, sponsored access,
short sales, consolidated audit trails and market volatility rules (including, circuit breakers and limit-up, limit-down rules).



The SEC is considering proposals relating to self-funding. We expect increases, possibly substantial, in Section 31 fees and fees imposed by other
regulators. In addition, DTCC and NSCC are considering proposals which could require substantial increases in clearing margin and collateral requirements.



On July 21, 2010, the Dodd-Frank Act was enacted into law marking a significant change to the regulation of the financial services industry. This
legislation affects nearly all financial institutions that operate in the U.S. While the weight of the Dodd-Frank Act falls more heavily on large, complex financial institutions, smaller institutions will also face a more complicated and expensive
regulatory framework.



Reverse mortgages can be a cost-effective way to help seniors (age 62 and older) meet their financial needs in retirement, by enabling them to tap the equity in
their home. Reverse mortgages have been popular with seniors who have equity in their homes and want to supplement their income and enhance their liquidity. This popularity may continue as the Baby Boomer generation enters retirement age. However,
there is no guarantee that current volumes or the referenced popularity will continue.



In 2011, two of the largest reverse mortgage originators exited the reverse mortgage business. Declining home values and the inability to assess borrowers
financial health were cited as factors contributing to their respective decisions. In April 2012, the largest reverse mortgage lender announced it was also exiting the reverse mortgage business citing its focus on other business lines.



In January 2011, the U.S. Department of Housing and Urban Development (HUD) provided loss mitigation guidance for the resolution of HECMs that are
delinquent due to, among other things, unpaid property charges (including taxes and homeowners insurance). HUD also discussed what steps lenders could take to get mortgagors back on track (e.g., establishing a repayment plan). HUD noted that
foreclosure is and must remain a method of last resort for the resolution of unpaid property charges. It has also been reported that HUD is developing procedures that would allow lenders to assess a prospective borrowers income and expenses,
and possibly require homeowners to set aside money to pay for taxes and homeowners insurance. However, no formal guidelines have yet been published.

Revenues on transactions for which
we charge explicit commissions or commission equivalents, which include the majority of our institutional client orders, as well as the mark-to-market of securitized HECM loan inventory, are included within Commissions and fees. Commissions and fees
are primarily affected by changes in our equity, fixed income and foreign exchange transaction volumes with institutional clients, changes in commission rates, level of volume based fees from providing liquidity to other trading venues, loan
origination and securitization volume and spreads, assets under management and the level of our soft dollar and commission recapture activity.

Trading profits and losses on principal transactions primarily relate to our global market making activities and are included within Net trading revenue. These revenues are primarily affected by changes in the
amount and mix of equity trade and share volumes, our revenue capture, dollar value of equities traded, our ability to derive trading gains by taking proprietary positions, changes in our execution standards, development of, and enhancement to, our
market making models, performance of our non-client trading models, volatility in the marketplace, our mix of broker-dealer and institutional clients, regulatory changes and evolving industry customs and practices.

Interest income, net is earned from our cash held at banks, cash held in trading accounts at third party clearing brokers and from collateralized
financing arrangements, such as stock borrowing, carry interest on loans and bonds held, and interest income net of interest expense on securitized HECM loan inventory. The Companys third party clearing agreements call for payment or receipt
of interest income, net of transaction-related interest charged by clearing brokers for facilitating the settlement and financing of securities transactions. Net interest is primarily affected by interest rates, the level of cash balances held at
banks and third party clearing brokers, our level of securities positions in which we are long compared to our securities positions in which we are short, the extent of our collateralized financing arrangements and the level of securitized HECM loan
inventory.

Investment income and other, net primarily represents returns on our strategic and deferred compensation investments. Such
income or loss is primarily affected by the performance and activity of our strategic investments and changes in value of certain deferred compensation investments.

Expenses

Employee compensation and benefits expense, our largest expense, primarily consists
of salaries and wages paid to all employees, profitability-based compensation, which includes compensation paid to sales personnel and incentive compensation paid to all other employees based on our profitability, employee benefits, and changes in
value of certain deferred compensation liabilities. Employee compensation and benefits expense fluctuates, for the most part, based on changes in our revenues and business mix, profitability and the number of employees. Compensation for employees
engaged in sales activities is determined primarily based on a percentage of their gross revenues net of certain transaction-based expenses.

Execution and clearance fees primarily represent fees paid to third party clearing brokers for
clearing equities, options and fixed income transactions; transaction fees paid to Nasdaq and other exchanges, clearing organizations and regulatory bodies; execution fees paid to third parties, primarily for executing trades on the NYSE, other
exchanges and ECNs; and loan processing fees. Execution and clearance fees primarily fluctuate based on changes in trade and share volume, execution strategies, rate of clearance fees charged by clearing brokers and rate of fees paid to ECNs,
exchanges and certain regulatory bodies and loan origination volume.

Payments for order flow primarily represent
payments to broker-dealer clients, in the normal course of business, for directing to us their order flow in U.S. equities and options. Payments for order flow also include fees paid to third party brokers with respect to reverse mortgage wholesale
loan production and fluctuate as we modify our rates and as our percentage of clients whose policy is not to accept payments for order flow varies. Payments for order flow also fluctuate based on U.S. equity share and option volumes, reverse
mortgage loan production and channel mix, our profitability and the mix of market orders, limit orders, and customer mix.

Interest
expense consists primarily of costs associated with our long-term debt and for collateralized financing arrangements such as stock lending and sale of financial instruments under our agreements to repurchase.

Depreciation and amortization expense results from the depreciation of fixed assets, which consist of computer hardware, furniture and fixtures,
and the amortization of purchased software, capitalized software development costs, acquired intangible assets and leasehold improvements. We depreciate our fixed assets and amortize our purchased software, capitalized software development costs and
acquired intangible assets on a straight-line basis over their expected useful lives. We amortize leasehold improvements on a straight-line basis over the lesser of the life of the improvement or the remaining term of the lease.

Represents new presentation for U.S. equity Market Making for all periods presented as described more fully in text below.

Totals may not add due to rounding.

N/M  Not meaningful

Total revenues from the Market Making segment, which primarily comprises Net trading revenue from our domestic
businesses, decreased 9.0% to $152.2 million for the three months ended March 31, 2012, from $167.2 million for the comparable period in 2011. Revenues for the three months ended March 31, 2012 were negatively impacted by lower volumes and
slightly lower volatility, which resulted in a decrease in revenues from both our client and non-client quantitative trading models offset, in part, by slightly higher average revenue capture per U.S. equity dollar value traded.

In the first quarter of 2012, we modified our quarterly revenue capture and monthly equity volume statistics in order to provide data specific to
the U.S. equity market making activity within the Market Making segment. Our revenue capture and volume statistics previously also included U.S. institutional sales activity. Average revenue capture per U.S. equity dollar value traded was
1.03 basis points (bps) for the first quarter of 2012, up 2.0% from the first quarter of 2011. The primary driver for the slight increase in revenue capture was due in part to growth and enhancements to our trading models and
infrastructure. Average revenue capture per U.S. equity market making dollar value traded is calculated as the total of net domestic market making trading revenues plus volume based fees from providing liquidity to other trading venues (included in
Commissions and fees), less certain transaction-related regulatory fees (included in Execution and clearance fees) (collectively Domestic U.S. Equity Market Making Revenues), divided by the total dollar value of the related equity
transactions. Domestic U.S. Equity Market Making Revenues were $140.1 million and $158.5 million for the three months ended March 31, 2012 and 2011, respectively.

Total revenues from the Institutional Sales and Trading segment, which primarily comprises Commissions and fees
from institutional equities, fixed income sales and reverse mortgage originations, increased 11.7% to $142.2 million for the three months ended March 31, 2012, from $127.4 million for the comparable period in 2011. Revenues were positively
impacted by increased revenues from fixed income, reverse mortgage and listed derivatives businesses offset, in part, by lower revenues from our capital markets and equity sales businesses.

Electronic Execution Services

For the three monthsended March 31,

2012

2011

Change

% of Change

Commissions and fees (millions)

$

44.4

$

40.4

$

4.0

9.9

%

Investment income and other, net (millions)

(0.2

)

(0.1

)

(0.1

)

N/M

Total Revenues from Electronic Execution Services (millions)

$

44.2

$

40.3

$

3.9

9.7

%

Average daily Knight Direct equity shares (millions)

215.8

165.3

50.5

30.6

%

Average daily Hotspot FX notional dollar value traded ($ billions)

55.7

55.1

0.6

1.1

%

Totals may not
add due to rounding.

N/M  Not meaningful

Total revenues from the Electronic Execution Services segment, which primarily comprises Commissions and fees from agency execution activity, increased 9.7% to $44.2 million for the three months ended
March 31, 2012, from $40.3 million for the comparable period in 2011. Revenues were positively impacted by higher volumes from our Knight Direct and Knight BondPoint businesses.

Total revenues from the Corporate and Other segment, which primarily represent interest income from
our stock borrow activity, gains or losses on strategic investments, and deferred compensation investments related to certain employees and directors, increased 112.5% to $10.4 million for the three months ended March 31, 2012, from $4.9
million for the comparable period in 2011. The primary drivers for the increase in revenues were higher interest income from our stock borrow activity offset, in part, by decrease in gains from our strategic investments.

Expenses

Employee
compensation and benefits expense decreased to $147.3 million for the three months ended March 31, 2012 from $149.0 million for the comparable period in 2011. As a percentage of total revenue, Employee compensation and benefits decreased to
42.2% for the three months ended March 31, 2012, from 43.8% for the comparable period in 2011. The decrease on a dollar basis and as a percentage of revenues was primarily due to the mix of our revenues across businesses and a decrease in
guaranteed compensation from our Institutional Sales and Trading segment.

The number of full time employees increased to 1,418 at
March 31, 2012, from 1,387 at March 31, 2011, primarily due to the growth of our reverse mortgage and market making businesses offset, in part, by a headcount reduction related to our restructuring in the third quarter of 2011. Employee
compensation and benefits expense fluctuates, for the most part, based on changes in our business mix, revenues, profitability and the number of employees.

Execution and clearance fees decreased slightly to $53.3 million for the three months ended March 31, 2012, from $53.4 million for the comparable period in 2011. As a percentage of total revenue, Execution and
clearance fees decreased to 15.3% for the three months ended March 31, 2012, from 15.7% for the comparable period in 2011. Execution and clearance fees fluctuate based on changes in transaction volumes, shift in business mix, regulatory fees
and operational efficiencies and scale.

Payments for order flow increased 4.7% to $21.7 million for the three months ended
March 31, 2012, from $20.7 million for the comparable period in 2011. As a percentage of total revenue, Payments for order flow increased slightly to 6.2% for the three months ended March 31, 2012, from 6.1% for the comparable period in
2011. This expense increased primarily due to the growth of our options market making business. Payments for order flow fluctuate as a percentage of revenue due to changes in volume, reverse mortgage loan production, client and product mix,
profitability, and competition.

There was no writedown of assets and lease loss accrual for the three months ended March 31, 2012.
Writedown of assets and lease loss accrual of $0.9 million for the three months ended March 31, 2011 related to excess real estate.

All other expenses increased by 11.0%, or $7.2 million, to $72.8 million for the three months ended March 31, 2012 from $65.6 million for the
comparable period in 2011. Interest expense increased primarily due to our increased stock lending activity and long-term debt. Communications and data processing expense increased primarily due to higher market data and connectivity expenses as a
result of our overall growth. Business development expense increased due to increased sales and marketing expenses. Professional fees increased due to higher consulting expenses. Occupancy and equipment rentals expense decreased primarily due to the
reduction in occupied spaces. Other expenses decreased due to lower reserves associated with our GNMA issuances and other administrative expenses.

Our effective tax rate from continuing operations of 38.7% and 38.8% for the three months ended March 31, 2012 and 2011, respectively, differed from the federal statutory rate of 35% primarily due to state and
local income taxes and non-deductible charges.

We have historically
maintained a highly liquid balance sheet, with a substantial portion of our total assets consisting of cash, highly liquid marketable securities and short term receivables. As of March 31, 2012 and December 31, 2011, we had $8.00 billion
and $7.15 billion, respectively, in assets, a portion of which consisted of cash or assets readily convertible into cash as follows (in millions):

March 31,2012

December 31,2011

Cash and cash equivalents

$

336.3

$

467.6

Financial instruments owned, at fair value:

Equities

1,863.1

1,416.1

Listed equity options

207.3

280.4

U.S. government obligations

6.9

44.3

Corporate debt

47.2

73.9

Mortgage-backed securities

11.5

16.4

Collateralized agreements:

Securities borrowed

1,530.6

1,494.6

Receivables from brokers, dealers and clearing organizations

703.7

623.9

Total cash and assets readily convertible to cash

$

4,706.6

$

4,417.3

Substantially all of the amounts disclosed in the table above can be liquidated to cash within five business days
under normal market conditions, however, the liquidated values may be subjected to haircuts during distressed market conditions.

Financial instruments owned principally consist of equities and listed equity options that trade on the NYSE, NYSE Amex and NYSE Arca markets,
Nasdaq and on the OTC Bulletin Board as well as securitized HECM loan inventories.

Securities borrowed represent the value of cash or
other collateral deposited with stock lenders to facilitate our trade settlement process.

Receivables from brokers, dealers and
clearing organizations include interest bearing cash balances held with third party clearing brokers, including, or net of, amounts related to securities transactions that have not yet reached their contracted settlement date, which is generally
within three business days of the trade date.

As of March 31, 2012 and December 31, 2011, $1.01 billion and $798.2 million,
respectively, of equities have been pledged as collateral to third-parties under financing arrangements.

Total assets increased $850.8 million, or 11.9%, from
$7.15 billion at December 31, 2011 to $8.00 billion at March 31, 2012. The majority of the increase in assets relates to the growth of our financial instruments owned. Financial instruments owned increased by $809.7 million, or 21.4%, from
$3.78 billion at December 31, 2011, to $4.59 billion at March 31, 2012, due to the increase in securitized HECM loan inventory, which represents HECM loans that have been securitized into GNMA securities which have been sold to third
parties but where the securitization is not accounted for as a sale under

current accounting standards. Also contributing to the increase in financial instruments owned are the increases in the size of the securities inventory utilized in our equity market making and
ETF activities resulting from expansion of our strategies. Our securities inventory fluctuates based on trading volumes, market conditions, trading strategies utilized and our pre-determined risk limits. Receivable from brokers, dealers and clearing
organizations increased by $79.8 million, from $623.9 million at December 31, 2011 to $703.7 million at March 31, 2012, due to increased deposits at third party clearing organizations as well as timing relating to trade date versus
settlement date differences. Securities borrowed increased by $35.9 million, from $1.49 billion at December 31, 2011 to $1.53 billion at March 31, 2012. The growth of our securities borrowed is a by-product of our self-clearing activities.

Total liabilities increased $816.9 million, or 14.4%, from $5.69 billion at December 31, 2011 to $6.51 billion at March 31,
2012. The majority of the increase in liabilities relates to increases in Collateralized financings, Financial instruments sold, not yet purchased and Payable to brokers, dealers and clearing organizations. Collateralized financings increased by
$635.2 million, or 22.0%, from $2.89 billion at December 31, 2011, to $3.52 billion at March 31, 2012 primarily due to the increased Liability to GNMA trusts, at fair value associated with the securitization of HECM loans into GNMA
securities, where such securitization is not accounted for as a sale, as well as the increased lending activity to facilitate transaction settlements relating to self-clearing and loan origination. Financial instruments sold, not yet purchased
increased by $120.1 million, or 7.0%, from $1.72 billion at December 31, 2011, to $1.84 billion at March 31, 2012, primarily due to an increase in the size of the securities inventory utilized in our equity market making and ETF activities
and for trade execution services. Our securities inventory fluctuates based on trading volumes, market conditions, trading strategies utilized and our pre-determined risk limits and is consistent with the increase in our long securities position.
Payable to brokers, dealers and clearing organizations increased by $115.4 million, from $322.7 million at December 31, 2011 to $438.1 million at March 31, 2012, due to timing relating to trade date versus settlement date differences.
Accrued compensation expense decreased from $188.9 million at December 31, 2011 to $83.6 million at March 31, 2012 primarily as a result of the payment of 2011 incentive compensation offset, in part, by the accrual of current period
incentive compensation.

Stockholders equity increased by $33.8 million, from $1.46 billion at December 31, 2011 to $1.50
billion at March 31, 2012. The increase in stockholders equity from December 31, 2011 was primarily a result of earnings and stock-based compensation activity during the three months ended March 31, 2012, offset by our stock
repurchase activity.

Liquidity and Capital Resources

We have financed our business primarily through cash generated by operations, our long-term debt and other borrowings. At March 31, 2012, we had net current assets, which consist of net assets readily
convertible into cash less current liabilities, of $1.07 billion.

We have acquired several businesses over the last few years. In July
2010, we completed the acquisition of Urban Financial Group, Inc. (Urban) for $28.4 million, comprising $19.4 million in cash, approximately 350,000 shares of unregistered Knight common stock valued at $5.0 million and a potential
earn-out based on future performance valued at $4.0 million. Urban achieved its first year performance target as of July 31, 2011. Therefore, the seller received $1.3 million split evenly between cash and unregistered shares of Knight common
stock. We expect to fund the purchase price of any future acquisitions with our current cash position or, in some cases, through the issuance of our stock or debt.

Net income was $33.1 million and $30.5 million for the three months ended March 31, 2012 and 2011, respectively. Included in these amounts were certain non-cash expenses such as stock-based compensation,
depreciation and amortization. Stock-based compensation was $13.7 million and

$15.3 million for the three months ended March 31, 2012 and 2011, respectively. Depreciation and amortization expense was $13.3 million and $13.2 million for the three months ended
March 31, 2012 and 2011, respectively. There were no non-cash writedowns for the three months ended March 31, 2012 or 2011.

Capital expenditures were $8.2 million and $12.3 million during the three months ended March 31, 2012 and 2011, respectively. Purchases of
investments were $9.5 million and $14.7 million and distributions from investments were $1.4 million and $2.1 million for the three months ended March 31, 2012 and 2011, respectively. There were no payments relating to acquisitions of
businesses, trading rights and other items for the three months ended March 31, 2012 and 2011.

In March 2010, we issued Cash
Convertible Senior Subordinated Notes (Notes) with a face amount of $375.0 million in a private offering. Net proceeds from the offering were $167.5 million, which included $15.0 million from the sale of warrants, less $140.5 million for
the termination and required repayment of the borrowings under our previous $140.0 million credit agreement including accrued interest, $73.7 million for the purchase of call options and $8.5 million of offering expenses. The Notes bear interest at
a rate of 3.50% per year, payable semi-annually in arrears, on March 15 and September 15 of each year, commencing on September 15, 2010 and will mature on March 15, 2015, subject to earlier repurchase or conversion. For the
three months ended March 31, 2012 and 2011, we recognized interest expense related to the Notes of $6.7 million and $6.4 million, respectively.

In June 2011, we entered into a $100.0 million three-year Term Loan Credit Agreement (the Term Credit Agreement) with a consortium of banks. As of March 31, 2012, the Company has borrowed all the
funds under the Term Credit Agreement and the interest rate was 2.75% per annum, which is based on the one month LIBOR rate plus 2.50%. Interest is paid monthly. The Term Credit Agreement is repayable in three installments as follows: $25.0
million on June 28, 2013, $25.0 million on December 27, 2013 and $50.0 million on June 27, 2014. For the three months ended March 31, 2012, we recognized interest expense related to the Term Credit Agreement of $0.7 million.

In June 2011, we also entered into a $200.0 million one-year Revolving Credit Agreement (the Revolving Credit Agreement)
with Knight Execution & Clearing Services LLC and Knight Capital Americas, L.P., as borrowers, with the same consortium of banks as the Term Credit Agreement. Borrowings under the Revolving Credit Agreement shall bear interest at a rate
equal to the greater of the federal funds rate or the one month LIBOR rate plus a margin ranging from 1.50%  2.00% per annum. Interest is payable quarterly. As of March 31, 2012, and December 31, 2011 there were no borrowings under
the Revolving Credit Agreement. Any amounts borrowed are repayable on June 27, 2012 which is the expiration date of the Revolving Credit Agreement. We are charged an annual commitment fee of 0.25% on the average daily amount of the unused
portion of the Revolving Credit Agreement. For the three months ended March 31, 2012, we recorded $0.1 million in commitment fees. We currently intend to renew our Revolving Credit Agreement when it becomes due.

See Footnote 8 Long-Term Debt, included in Part I, Item 1 Financial Statements of this Form 10-Q for further
information regarding the Notes, Term Credit Agreement and Revolving Credit Agreement.

We have an authorized stock repurchase program
of $1.00 billion. We repurchase 0.7 million shares for $8.5 million under the stock repurchase program during the first quarter of 2012. Through March 31, 2012, we had repurchased 75.9 million shares for $868.1 million under this
program. We may repurchase shares from time to time in open market transactions, accelerated stock buyback

programs, tender offers, privately negotiated transactions or by other means. Repurchases may also be made under Rule 10b5-1 plans. The timing and amount of repurchase transactions will be
determined by our management based on its evaluation of market conditions, share price, legal requirements and other factors. The program may be suspended, modified or discontinued at any time without prior notice. We caution that there
are no assurances that any further repurchases will actually occur. We had 98.7 million shares of Class A Common Stock outstanding as of March 31, 2012.

Our U.S. registered broker-dealers are subject to regulatory requirements intended to ensure the general financial soundness and liquidity of
broker-dealers and require the maintenance of minimum levels of net capital, as defined in SEC Rule 15c3-1. These regulations also prohibit a broker-dealer from repaying subordinated borrowings, paying cash dividends, making loans to its parent,
affiliates or employees, or otherwise entering into transactions which would result in a reduction of its total net capital to less than 120% of its required minimum capital. Moreover, broker-dealers are required to notify the SEC and other
regulators prior to repaying subordinated borrowings, paying dividends and making loans to its parent, affiliates or employees, or otherwise entering into transactions, which, if executed, would result in a reduction of 30% or more of its excess net
capital (net capital less minimum requirement). The SEC has the ability to prohibit or restrict such transactions if the result is detrimental to the financial integrity of the broker-dealer. As of March 31, 2012, all of our broker-dealers were
in compliance with the applicable regulatory net capital rules.

The following table sets forth the net capital levels and requirements
for the following significant regulated U.S. broker-dealer subsidiaries at March 31, 2012, as reported in their respective regulatory filings (in millions):

Entity

Net Capital

Net CapitalRequirement

Excess NetCapital

Knight Capital Americas, L.P.

$

198.4

$

1.0

$

197.4

Knight Execution & Clearing Services LLC

119.6

1.2

118.4

Our foreign registered broker-dealers are subject to certain financial resource requirements of either the
Financial Services Authority (FSA) or the Securities and Futures Commission (SFC). The following table sets forth the financial resource requirement for the following significant foreign regulated broker-dealer at
March 31, 2012 (in millions):

Entity

FinancialResources

ResourceRequirement

Excess FinancialResources

Knight Capital Europe Limited

$

133.1

$

45.1

$

88.0

Off-Balance Sheet Arrangements

As of March 31, 2012, we did not have any off-balance sheet arrangements, as defined in Item 303(a) (4) (ii) of SEC Regulation S-K.

Effects of Inflation

Because the majority of our assets are liquid in nature, they are not
significantly affected by inflation. However, the rate of inflation may affect our expenses, such as employee compensation, office leasing costs and communications expenses, which may not be readily recoverable in the prices of the services offered
by us. To the extent inflation results in rising interest rates and has other adverse effects on the securities markets, it may adversely affect our financial position and results of operations.

Our Consolidated Financial Statements are based on the application of GAAP which requires us to make estimates and assumptions about future events that affect the amounts reported in our financial statements and
the accompanying notes. Future events and their effects cannot be determined with certainty. Therefore, the determination of estimates requires the exercise of judgment. Actual results could differ from those estimates and any such differences may
be material to our Consolidated Financial Statements. We believe that the estimates set forth below may involve a higher degree of judgment and complexity in their application than our other accounting estimates and represent the critical accounting
estimates used in the preparation of our consolidated financial statements. We believe our judgments related to these accounting estimates are appropriate. However, if different assumptions or conditions were to prevail, the results could be
materially different from the amounts recorded.

Financial Instruments and Fair Value  We value our financial instruments
using a hierarchy of fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value.

The fair value hierarchy can be summarized as follows:



Level 1  Valuations based on quoted prices in active markets for identical assets or liabilities that we have the ability to access. Since valuations are
based on quoted prices that are readily and regularly available in an active market, valuation of these products does not entail a significant degree of judgment.



Level 2  Valuations based on quoted prices in markets that are not active or for which all significant inputs are observable, either directly or
indirectly.



Level 3  Valuations based on inputs that are unobservable and significant to the overall fair value measurement.

Changes in fair value are recognized in earnings each period for financial instruments that are carried at fair value.

Our financial instruments owned and financial instruments sold, not yet purchased will generally be classified within Level 1 of the fair value
hierarchy because they are valued using quoted market prices or broker or dealer quotations with reasonable levels of price transparency.

The types of instruments that trade in markets that are not considered to be active, but are valued based on observable inputs such as quoted
market prices or alternative pricing sources with reasonable levels of price transparency are generally classified within Level 2 of the fair value hierarchy.

As discussed in Footnote 8 Long-Term Debt, included in Part I, Item 1 Financial Statements of this Form 10-Q, we entered into purchased call options and recorded an embedded conversion
derivative concurrent with our issuance of the Notes. The fair value of these options and derivative are determined using an option pricing model based on observable inputs such as implied volatility of our common stock, risk-free interest rate, and
other factors and, as such, are classified within Level 2 of the fair value hierarchy.

Certain instruments are classified within Level 3 of the fair value hierarchy because they trade
infrequently and therefore have little or no price transparency. For those instruments that are not traded in active markets or are subject to transfer restrictions, valuations are adjusted to reflect illiquidity and/or non-transferability, and such
adjustments are generally based on available market evidence. In the absence of such evidence, managements best estimate is used. As of March 31, 2012 and December 31, 2011, we did not hold any financial instruments that met the
definition of Level 3.

There were no transfers of financial instruments between levels of the fair value hierarchy for any periods
presented.

Securitization activities  We securitize HECMs under our GNMA issuance authority. Securitization and transfer
of financial assets are generally accounted for as sales when an issuer has relinquished control over the transferred assets. Based upon the current structure of the GNMA securitization program, we believe that we have not met the GAAP criteria for
relinquishing control over the transferred assets and therefore our securitizations fail to meet the GAAP criteria for sale accounting. As such, we continue to recognize the HECMs in Financial instruments owned, at fair value, and we recognize a
corresponding liability in Liability to GNMA trusts, at fair value on the Consolidated Statements of Financial Condition.

Goodwill
and Intangible Assets  As a result of our various acquisitions, we have acquired goodwill and identifiable intangible assets. We determine the values and useful lives of intangible assets upon acquisition. Goodwill is the cost of acquired
companies in excess of the fair value of net assets, including identifiable intangible assets, at the acquisition date. We test goodwill and intangible assets with an indefinite useful life for impairment at least annually or when an event occurs or
circumstances change that signifies the existence of impairment.

Goodwill

Goodwill of $337.8 million at March 31, 2012 primarily relates to our Institutional Sales and Trading and Electronic Execution Services
segments. We test the goodwill in each of our operating segments for impairment at least annually by comparing the estimated fair value of each reporting unit with its estimated net book value. We derive the fair value of each of our operating
segments based on valuation techniques we believe market participants would use for each segment (observable price-to-book multiples and discounted cash flow analyses) and we derive the net book value of our operating segments by estimating the
amount of shareholders equity required to support the activities of each operating segment. As part of our test for impairment, we also consider the profitability of the applicable reporting unit as well as our overall market value, compared
to our book value. We performed our annual test for impairment of goodwill in the second quarter of 2011 and determined that goodwill was not impaired at that time. No events occurred during the three months ended March 31, 2012 that would
indicate that our goodwill may not be recoverable.

Intangible Assets

Intangible assets, less accumulated amortization, of $89.0 million at March 31, 2012 are primarily attributable to our Institutional Sales and
Trading and Electronic Execution Services segments. We amortize these assets, which primarily consist of customer relationships on a straight-line basis over their useful lives, the majority of which have been determined to range from two to 20
years. We test amortizable intangibles for recoverability whenever events indicate that the carrying amounts may not be recoverable. No event occurred during the three months ended March 31, 2012 that would indicate that the carrying amounts of
our intangible assets may not be recoverable.

Investments  Investments primarily comprise strategic investments and deferred
compensation investments. Strategic investments include noncontrolling equity ownership interests and debt instruments held by us within our non-broker-dealer subsidiaries, primarily in financial services-related businesses. Strategic investments
are accounted for under the equity method, at cost or at fair value. We use the equity method of accounting where we are considered to exert significant influence on the investee. We hold strategic investments at cost, less impairment if any, when
we are not considered to exert significant influence on operating and financial policies of the investee. We account for our deferred compensation investments, which primarily consist of mutual funds, at fair value.

We review investments on an ongoing basis to ensure that the carrying values of the investments have not been impaired. If we assess that an
impairment loss on a strategic investment has occurred due to a decline in fair value or other market conditions, we write the investment down to its estimated impaired value.

We maintain a deferred compensation plan related to certain employees and directors. This plan provides a return to the participants based upon the performance of various investments. In order to hedge our
liability under this plan, we generally acquire the underlying investments and hold such investments until the deferred compensation liabilities are satisfied. We record changes in value of such investments in Investment income and other, net, with
a corresponding charge or credit to Employee compensation and benefits on the Consolidated Statements of Operations.

Market Making,
Sales, Trading and Execution Activities  Financial instruments owned and Financial instruments sold, not yet purchased, which relate to market making and trading activities, include listed and OTC equity securities, listed equity options
and fixed income securities which are recorded on a trade date basis and carried at fair value. Net trading revenue (trading gains, net of trading losses) and commissions (which includes commission equivalents earned on institutional client orders
and HECM loan originations and securitization activities) and related expenses are also recorded on a trade date basis. Our third party clearing agreements call for payment or receipt of interest income, net of transaction-related interest charged
by clearing brokers for facilitating the settlement and financing of securities transactions. The Company also nets interest income on its securitized HECM loan inventory against interest expense on its liability to GNMA trusts.

Dividend income relating to securities owned and dividend expense relating to securities sold, not yet purchased, derived from our market making
activities are included as a component of Net trading revenue on our Consolidated Statements of Operations.

Other Estimates  The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions. In addition to the estimates that we make in connection
with accounting for the items noted above, the use of estimates is also important in determining provisions for potential losses that may arise from litigation, regulatory proceedings and tax audits.

When determining stock-based employee compensation expense, we make certain estimates and assumptions relating to volatility and forfeiture rates.
We estimate volatility based on several factors including implied volatility of market-traded options on our common stock on the grant date and the historical volatility of our common stock. We estimate forfeiture rates based on historical rates of
forfeiture of employee stock awards.

A portion of our Employee compensation and benefits expense on the Consolidated Statements of
Operations represents discretionary bonuses, which are accrued for throughout the year and paid after the end of the year. Among many factors, discretionary bonus accruals are generally influenced by our overall performance and competitive industry
compensation levels.

We estimate and accrue for potential losses that may arise out of litigation and regulatory
proceedings to the extent that such losses are probable and can be estimated. Significant judgment is required in making these estimates and our final liabilities may ultimately be materially different. Our total liability accrued with respect to
litigation and regulatory proceedings is determined on a case-by-case basis and represents an estimate of probable losses based on, among other factors, the progress of each case, our experience and industry experience with similar cases and the
opinions and views of internal and external legal counsel. Given the inherent difficulty of predicting the outcome of our litigation and regulatory matters, particularly in cases or proceedings in which substantial or indeterminate damages or fines
are sought, or where cases or proceedings are in the early stages, we cannot estimate losses or ranges of losses for cases or proceedings where there is only a reasonable possibility that a loss may be incurred. For more information on our legal and
regulatory matters, see Legal Proceedings in Part I, Item 3 of our Annual Report on Form 10-K for the year ended December 31, 2011, Part II, Item 1 included in this Form 10-Q and other reports or documents the Company files
with, or furnishes, to the SEC from time to time.

Accounting Standards Updates

In December 2011, the FASB issued an Accounting Standard Update (ASU) that requires additional disclosures about financial assets and
liabilities that are subject to netting arrangements. Under the ASU, financial assets and liabilities must be disclosed at their respective gross asset and liability amounts, the amounts offset on the balance sheet and a description of the
respective netting arrangements. The new disclosures are required for annual reporting periods beginning on or after January 1, 2013, and are to be applied retrospectively. Other than the change in presentation, we have determined that the
adoption of this ASU will not have an impact on our Consolidated Financial Statements.

Item 3.

Quantitative and Qualitative Disclosures About Market Risk

We are exposed to numerous risks in the ordinary course of our business and activities; therefore, effective risk management is critical to our financial soundness and profitability. We have a comprehensive risk
management structure and processes to monitor and evaluate the principal risks we assume in conducting our business. Our risk management policies, procedures and methodologies are subject to ongoing review and modification. The principal risks we
face are as follows:

Market Risk

Our market making and trading activities expose our capital to significant risks. These risks include, but are not limited to, absolute and
relative price movements, price volatility, interest rates, credit spreads, and changes in liquidity, over which we have virtually no control. Equity price risks result from exposure to changes in prices and volatilities of individual equities,
equity baskets and equity indices. Interest rate risks result primarily from exposure and changes in the yield curve, the volatility of interest rates and credit spreads.

For working capital purposes, we invest in money market funds and government securities or maintain interest-bearing balances at banks and in our trading accounts with clearing brokers, which are classified as Cash
and cash equivalents and Receivable from brokers, dealers and clearing organizations, respectively, on the Consolidated Statements of Financial Condition. These financial instruments do not have maturity dates, effectively alleviating significant
market risk, as the balances are short-term in nature and subject to daily repricing. Our cash and cash equivalents held in foreign currencies are subject to the exposure of foreign currency fluctuations. These balances are monitored daily and are
not material to our overall cash position.

We employ proprietary position management and trading systems that provide real-time, on-line position
management and inventory control. We monitor our risks by reviewing trading positions and their appropriate risk measures. We have established a system whereby transactions are monitored by senior management and an independent risk control function
on a real-time basis as are individual and aggregate dollar and inventory position totals, capital allocations, and real-time profits and losses. Our management of trading positions is enhanced by our review of mark-to-market valuations and position
summaries on a daily basis.

In the normal course of business, we maintain inventories of exchange-listed and OTC equity securities, and
to a significantly lesser extent, listed equity options and fixed income products. The fair value of these financial instruments at March 31, 2012 and 2011 was $2.18 billion and $1.87 billion, respectively, in long positions and $1.83 billion
and $1.63 billion, respectively, in short positions. The potential change in fair value, using a hypothetical 10% decline in prices, is estimated to be a loss of $34.7 million and $23.8 million as of March 31, 2012 and 2011, respectively, due
to the offset of gains in short positions against losses in long positions.

Operational Risk

Operational risk can arise from many factors ranging from routine processing errors to potentially costly incidents arising, for example, from
major systems failures. Our businesses are highly dependent on our ability to process, on a daily basis, a large number of transactions across numerous and diverse markets in several currencies. We incur operational risk across all of our business
activities, including revenue generating activities as well as support functions. Legal and compliance risk is included in the scope of operational risk and is discussed below under Legal Risk.

Primary responsibility for the management of operational risk lies with our operating segments and supporting functions. Our operating segments
maintain controls designed to manage and mitigate operational risk for existing activities. As new products and business activities are developed, we endeavor to identify operational risks and design controls to seek to mitigate the identified
risks.

Disaster recovery plans are in place for critical facilities related to our primary operations and resources and redundancies
are built into the systems as deemed reasonably appropriate. We have also established policies, procedures and technologies designed to seek to protect our systems and other assets from unauthorized access.

Liquidity Risk

Liquidity risk is the risk
that we would be unable to meet our financial obligations as they arise in both normal and strained funding environments. To that end, we have established a comprehensive and conservative set of policies and procedures that govern the management of
liquidity risk for the Company at the corporate level and at the business unit level.

We maintain a liquidity pool consisting primarily
of cash and other highly liquid instruments at the corporate level to satisfy intraday and day-to-day funding needs, as well as potential cash needs in a strained funding environment. In addition, we maintain committed and uncommitted credit
facilities with a number of unaffiliated financial institutions. In connection with the uncommitted credit facilities, the lender is at no time under any obligation to make any advance under the credit line, and any outstanding loans must be repaid
on demand from the lender.

We regularly perform liquidity risk stress testing based on a scenario that considers both market-wide stresses and
a company-specific stress over a two-week period. Given the nature of the Companys business activity and balance sheet composition, survival over the first one to three days of a severe stress environment are most critical, after which
management actions could be effectively implemented to navigate through prolonged periods of financial stress. The modeled cash inflows and outflows from the stress test serve as a quantitative input to assist us in establishing the Companys
liquidity risk appetite and amount of liquid assets to be held at the corporate level. The liquidity stress test considers cash flow risks arising from, but not limited to, a dislocation of the secured funding market, additional unexpected margin
requirements, and operational events. Throughout the first quarter of 2012, the Company maintained sufficient liquidity and liquid resources to satisfy the stress test.

We maintain a contingency funding plan (CFP) which clearly delineates the roles, responsibilities and actions that will be utilized as the Company encounters various levels of liquidity stress with the
goal of fulfilling all financial obligations as they arise while maintaining business activity. We periodically update and test the operational functionality of various aspects of the CFP to ensure it remains current with changing business activity.

Capital Risk

Government
regulators, both in the U.S. and globally, as well as self-regulated organizations, have supervisory responsibility over our regulated activities and require us to maintain specified minimum levels of regulatory capital in our broker-dealer and
mortgage originator subsidiaries. If not properly monitored, our regulatory capital levels could fall below the required minimum amounts set by our regulators, which could expose us to various sanctions ranging from fines and censure to imposing
partial or complete restrictions on our ability to conduct business.

To mitigate this risk, we continuously evaluate the levels of
regulatory capital at each of our regulated subsidiaries and adjust the amounts of regulatory capital as necessary to ensure compliance with regulatory capital requirements. We also maintain excess regulatory capital to accommodate periods of
unusual or unforeseen market volatility. In addition, we monitor regulatory developments regarding capital requirements and prepare for changes in the required minimum levels of regulatory capital that may occur in the future.

Legal Risk

Legal risk includes the risk of
non-compliance with applicable legal and regulatory requirements and standards. Legal risk also includes contractual and commercial risk such as the risk that counterpartys performance obligations will be unenforceable. We are generally
subject to extensive regulation in the different jurisdictions in which we conduct our business. We have established procedures based on legal and regulatory requirements that are designed to foster compliance with applicable statutory and
regulatory requirements. We have also established procedures that are designed to require that our policies relating to conduct, ethics and business practices are followed.

Credit risk represents the loss that we would incur if a counterparty fails to perform its contractual obligations in a timely manner. We manage credit risk with a global, independent credit risk management
function that is responsible for measuring, monitoring and controlling the counterparty credit risks inherent in our business activities. To accomplish this, we have established credit policies for specific business lines.

Our credit risk functions process for managing credit risk includes a qualitative and quantitative risk assessment of significant
counterparties prior to engaging in business activity, as well as, on an ongoing basis. The review includes formal financial analysis and due diligence when appropriate.

Our credit risk function is responsible for approving counterparties and establishing credit limits to manage credit risk exposure by counterparty and business line. The assigned limits reflect the various
elements of assessed credit risk and are subsequently revised to correspond with changes in the counterparties credit profiles. Our credit risk function communicates counterparty limits to the business areas as well as senior management,
and monitors compliance with the established limits.

Where appropriate, counterparty exposure is monitored on a daily basis and the
collateral, if required, is marked to market daily to accurately reflect the current exposure.

Foreign Currency Risk

Our exposure to foreign currency transaction gains and losses is the result of our foreign subsidiaries having a functional currency other than the
U.S. dollar and transacting business in currencies other than the U.S. dollar, primarily the British pound and the Euro. A portion of these risks are hedged, but fluctuations in currency exchange rates could impact our results of operations,
financial position and cash flows.

Item 4.

Controls and Procedures

As of the end of
the period covered by this report, an evaluation was carried out under the supervision and with the participation of the Companys management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design
and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934). Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the design and
operation of these disclosure controls and procedures were effective. There have not been any changes in the Companys internal control over financial reporting (as such term is defined in Rule 13a-15(f) and 15d-15(f) under the Securities
Exchange Act of 1934) during the fiscal quarter covered by this report that have materially affected, or are reasonably likely to materially affect, the Companys internal control over financial reporting.

From time to time, we and
certain of our past and present officers, directors and employees have been named as parties to legal actions, arbitrations, administrative claims and regulatory reviews and investigations arising in connection with the conduct of our businesses. We
are subject to such matters at the present time. Although there can be no assurances, at this time the Company believes, based on information currently available, that the outcome of each of the matters will not have a material adverse effect on the
consolidated financial condition of the Company, although they might be material to operating results for any particular period, depending, in part, upon operating results for that period.

We own subsidiaries including regulated entities that are subject to extensive oversight under federal, state and applicable international laws as
well as SRO rules. Changes in market structure and the need to remain competitive require constant changes to our systems and order handling procedures. We make these changes while continuously endeavoring to comply with many complex laws and rules.
Compliance, surveillance and trading issues common in the securities industry are monitored by, reported to, and/or reviewed in the ordinary course of business by our regulators in the U.S. and abroad. As a major order flow execution destination and
reverse mortgage originator, we are named from time to time in, or are asked to respond to a number of regulatory matters brought by U.S. regulators, foreign regulators and SROs that arise from our business activities. We are currently the subject
of various regulatory reviews and investigations. In some instances, these matters may rise to a disciplinary action and/or civil or administrative action.

Item 1A.

Risk Factors

In addition to the other
information set forth in this report, you should carefully consider the factors discussed in Part I, Item 1A. Risk Factors in our Annual Report on Form 10-K for the year ended December 31, 2011, which could materially affect
our business, financial condition or future results. The risks described in our Annual Report on Form 10-K are not the only risks facing our Company. Additional risks and uncertainties not currently known to us or that we currently deem to be
immaterial also may materially adversely affect our business, financial condition and/or operating results.

The following table contains information about our purchases of our Class A Common Stock during the first quarter of 2012 (in thousands, except per share amounts):

Period

Total Number ofShares Purchased

AveragePrice Paidper Share

Total Number ofShares Purchasedas Part of PubliclyAnnounced
Plansor Programs(1)

Approximate Dollar Valueof Shares That May YetBe Purchased Under
thePlans or Programs

January 1, 2012  January 31,2012

Common stock repurchases

-

-

$

140,488

Employee
transactions(2)

743

-

Total

743

$

13.04

-

February 1, 2012  February 29,2012

Common stock repurchases

500

500

$

133,870

Employee
transactions(2)

28

-

Total

528

$

13.23

500

March 1, 2012  March 31, 2012

Common stock repurchases

150

150

$

131,939

Employee
transactions(2)

62

-

Total

212

$

12.86

150

Total

Common stock repurchases

650

650

Employee
transactions(2)

833

-

Total

1,483

$

13.08

650

Totals may not
add due to rounding.

(1)

The Companys Board of Directors previously announced the authorization of a stock repurchase program, which allowed for the purchase of Class A Common Stock up to a
total amount of $1.00 billion. The Company may repurchase shares from time to time in the open market, through accelerated stock buyback programs, tender offers, privately negotiated transactions or by other means. Repurchases may also be made under
a Rule 10b5-1 plan. The timing and amount of repurchase transactions will be determined by the Companys management based on its evaluation of current and future financing needs, market conditions, share price, legal requirements and other
factors. The program may be suspended, modified or discontinued at any time without prior notice. The Company cautions that there are no assurances that any further repurchases will actually occur. The repurchase program has no set expiration or
termination date.

(2)

Represents shares of common stock withheld in satisfaction of tax withholding obligations upon vesting of employee restricted awards.

Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

31.2*

Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

32.1*

Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

32.2*

Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

101**

The following materials from Knight Capital Group, Inc.s Quarterly Report on Form 10-Q for the quarter ended March 31, 2012, formatted in XBRL (eXtensible Business Reporting Language);
(i) Consolidated Statements of Operations for the three months ended March 31, 2012 and 2011, (ii) Consolidated Statements of Comprehensive Income for the three months ended March 31, 2012 and 2011, (iii) Consolidated Statements of Financial
Condition at March 31, 2012 and December 31, 2011, (iv) Consolidated Statements of Cash Flows for the three months ended March 31, 2012 and 2011 and (v) Notes to Consolidated Financial Statements

*

Filed herewith.

**

Pursuant to rule 406T of Regulation S-T, the Interactive Data Files on Exhibit 101 hereto are deemed not filed for purposes of Sections 11 or 12 of the Securities Act of 1933, as
amended, are deemed not filed for purposes of Section 18 of the Securities and Exchange Act of 1934, as amended, and otherwise are not subject to liability under those sections.

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized, in the City of Jersey City, State of New Jersey, on this 10th day of May, 2012.